Finding the Fourth Proportional to 22,174.74, 30,559.05 and 15,876.18
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Solution
The fourth proportional to 22,174.74, 30,559.05 and 15,876.18 is: 21,878.99
Step by Step Solution
- Step 1: Write the proportion equation
22,174.74 : 30,559.05 = 15,876.18 : x - Step 2: Convert to fraction form
22,174.74/30,559.05 = 15,876.18/x - Step 3: Cross multiply
22,174.74x = 30,559.05 × 15,876.18 - Step 4: Simplify right side
22,174.74x = 485,160,978.43 - Step 5: Solve for x
x = 485,160,978.43/22,174.74 - Step 6: Final answer
x = 21,878.99
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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.