15.39 is what percent of 115 - 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 115 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 115, so we can write it down as 100%=115.
4. We know, that x% equals 15.39 of the output value, so we can write it down as x%=15.39.
5. Now we have two simple equations:
1) 100%=115
2) x%=15.39
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%=115/15.39
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 15.39 is what percent of 115

100%/x%=115/15.39
(100/x)*x=(115/15.39)*x       - we multiply both sides of the equation by x
100=7.4723846653671*x       - we divide both sides of the equation by (7.4723846653671) to get x
100/7.4723846653671=x
13.382608695652=x
x=13.382608695652

now we have:
15.39 is 13.382608695652% of 115