10.8 is what percent of 28.4 - 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 28.4 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 28.4, so we can write it down as 100%=28.4.
4. We know, that x% equals 10.8 of the output value, so we can write it down as x%=10.8.
5. Now we have two simple equations:
1) 100%=28.4
2) x%=10.8
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%=28.4/10.8
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 10.8 is what percent of 28.4

100%/x%=28.4/10.8
(100/x)*x=(28.4/10.8)*x       - we multiply both sides of the equation by x
100=2.6296296296296*x       - we divide both sides of the equation by (2.6296296296296) to get x
100/2.6296296296296=x
38.028169014085=x
x=38.028169014085

now we have:
10.8 is 38.028169014085% of 28.4