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Finding the Fourth Proportional to 22,715.30, 34,008.15 and 20,123.30

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Solution

The fourth proportional to 22,715.30, 34,008.15 and 20,123.30 is: 30,127.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,715.30 : 34,008.15 = 20,123.30 : x
  2. Step 2: Convert to fraction form
    22,715.30/34,008.15 = 20,123.30/x
  3. Step 3: Cross multiply
    22,715.30x = 34,008.15 × 20,123.30
  4. Step 4: Simplify right side
    22,715.30x = 684,356,204.90
  5. Step 5: Solve for x
    x = 684,356,204.90/22,715.30
  6. Step 6: Final answer
    x = 30,127.54

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1.5x scale

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.