What is 38.8 percent of 108.9 - 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 108.9 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 108.9 is 100%, so we can write it down as 108.9=100%.
4. We know, that x is 38.8% of the output value, so we can write it down as x=38.8%.
5. Now we have two simple equations:
1) 108.9=100%
2) x=38.8%
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:
108.9/x=100%/38.8%
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 38.8% of 108.9

108.9/x=100/38.8
(108.9/x)*x=(100/38.8)*x       - we multiply both sides of the equation by x
108.9=2.5773195876289*x       - we divide both sides of the equation by (2.5773195876289) to get x
108.9/2.5773195876289=x
42.2532=x
x=42.2532

now we have:
38.8% of 108.9=42.2532