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Finding the Fourth Proportional to 41,138.60, 61,686.30 and 14,839.40

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Solution

The fourth proportional to 41,138.60, 61,686.30 and 14,839.40 is: 22,251.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,138.60 : 61,686.30 = 14,839.40 : x
  2. Step 2: Convert to fraction form
    41,138.60/61,686.30 = 14,839.40/x
  3. Step 3: Cross multiply
    41,138.60x = 61,686.30 × 14,839.40
  4. Step 4: Simplify right side
    41,138.60x = 915,387,680.22
  5. Step 5: Solve for x
    x = 915,387,680.22/41,138.60
  6. Step 6: Final answer
    x = 22,251.31

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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.