Finding the Fourth Proportional to 36,561.05, 50,453.84 and 20,645.09
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Solution
The fourth proportional to 36,561.05, 50,453.84 and 20,645.09 is: 28,489.99
Step by Step Solution
- Step 1: Write the proportion equation
36,561.05 : 50,453.84 = 20,645.09 : x - Step 2: Convert to fraction form
36,561.05/50,453.84 = 20,645.09/x - Step 3: Cross multiply
36,561.05x = 50,453.84 × 20,645.09 - Step 4: Simplify right side
36,561.05x = 1,041,623,712.15 - Step 5: Solve for x
x = 1,041,623,712.15/36,561.05 - Step 6: Final answer
x = 28,489.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.