19.85 is what percent of 305 - 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 305 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 305, so we can write it down as 100%=305.
4. We know, that x% equals 19.85 of the output value, so we can write it down as x%=19.85.
5. Now we have two simple equations:
1) 100%=305
2) x%=19.85
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%=305/19.85
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 19.85 is what percent of 305

100%/x%=305/19.85
(100/x)*x=(305/19.85)*x       - we multiply both sides of the equation by x
100=15.36523929471*x       - we divide both sides of the equation by (15.36523929471) to get x
100/15.36523929471=x
6.5081967213115=x
x=6.5081967213115

now we have:
19.85 is 6.5081967213115% of 305