4.04 is what percent of 21.81 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 21.81 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 21.81, so we can write it down as 100%=21.81.
4. We know, that x% equals 4.04 of the output value, so we can write it down as x%=4.04.
5. Now we have two simple equations:
1) 100%=21.81
2) x%=4.04
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=21.81/4.04
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 4.04 is what percent of 21.81

100%/x%=21.81/4.04
(100/x)*x=(21.81/4.04)*x       - we multiply both sides of the equation by x
100=5.3985148514851*x       - we divide both sides of the equation by (5.3985148514851) to get x
100/5.3985148514851=x
18.52361302155=x
x=18.52361302155

now we have:
4.04 is 18.52361302155% of 21.81