0.39 is what percent of 1.87 - 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 1.87 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 1.87, so we can write it down as 100%=1.87.
4. We know, that x% equals 0.39 of the output value, so we can write it down as x%=0.39.
5. Now we have two simple equations:
1) 100%=1.87
2) x%=0.39
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%=1.87/0.39
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 0.39 is what percent of 1.87

100%/x%=1.87/0.39
(100/x)*x=(1.87/0.39)*x       - we multiply both sides of the equation by x
100=4.7948717948718*x       - we divide both sides of the equation by (4.7948717948718) to get x
100/4.7948717948718=x
20.855614973262=x
x=20.855614973262

now we have:
0.39 is 20.855614973262% of 1.87