Finding the Fourth Proportional to 37,131.74, 55,705.81 and 18,421.95
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Solution
The fourth proportional to 37,131.74, 55,705.81 and 18,421.95 is: 27,636.99
Step by Step Solution
- Step 1: Write the proportion equation
37,131.74 : 55,705.81 = 18,421.95 : x - Step 2: Convert to fraction form
37,131.74/55,705.81 = 18,421.95/x - Step 3: Cross multiply
37,131.74x = 55,705.81 × 18,421.95 - Step 4: Simplify right side
37,131.74x = 1,026,209,646.53 - Step 5: Solve for x
x = 1,026,209,646.53/37,131.74 - Step 6: Final answer
x = 27,636.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.