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Finding the Fourth Proportional to 29,008.86, 40,044.87 and 18,414.78

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Solution

The fourth proportional to 29,008.86, 40,044.87 and 18,414.78 is: 25,420.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,008.86 : 40,044.87 = 18,414.78 : x
  2. Step 2: Convert to fraction form
    29,008.86/40,044.87 = 18,414.78/x
  3. Step 3: Cross multiply
    29,008.86x = 40,044.87 × 18,414.78
  4. Step 4: Simplify right side
    29,008.86x = 737,417,471.18
  5. Step 5: Solve for x
    x = 737,417,471.18/29,008.86
  6. Step 6: Final answer
    x = 25,420.42

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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.