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Finding the Fourth Proportional to 40,932, 61,398 and 16,325.28

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Solution

The fourth proportional to 40,932, 61,398 and 16,325.28 is: 24,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,932 : 61,398 = 16,325.28 : x
  2. Step 2: Convert to fraction form
    40,932/61,398 = 16,325.28/x
  3. Step 3: Cross multiply
    40,932x = 61,398 × 16,325.28
  4. Step 4: Simplify right side
    40,932x = 1,002,339,541.44
  5. Step 5: Solve for x
    x = 1,002,339,541.44/40,932
  6. Step 6: Final answer
    x = 24,487.92

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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.