What is 28.7 percent of 135 - 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 135 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 135 is 100%, so we can write it down as 135=100%.
4. We know, that x is 28.7% of the output value, so we can write it down as x=28.7%.
5. Now we have two simple equations:
1) 135=100%
2) x=28.7%
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:
135/x=100%/28.7%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 28.7% of 135

135/x=100/28.7
(135/x)*x=(100/28.7)*x       - we multiply both sides of the equation by x
135=3.4843205574913*x       - we divide both sides of the equation by (3.4843205574913) to get x
135/3.4843205574913=x
38.745=x
x=38.745

now we have:
28.7% of 135=38.745