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Finding the Fourth Proportional to 29,397.60, 44,081.28 and 8,618.40

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Solution

The fourth proportional to 29,397.60, 44,081.28 and 8,618.40 is: 12,923.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,397.60 : 44,081.28 = 8,618.40 : x
  2. Step 2: Convert to fraction form
    29,397.60/44,081.28 = 8,618.40/x
  3. Step 3: Cross multiply
    29,397.60x = 44,081.28 × 8,618.40
  4. Step 4: Simplify right side
    29,397.60x = 379,910,103.55
  5. Step 5: Solve for x
    x = 379,910,103.55/29,397.60
  6. Step 6: Final answer
    x = 12,923.17

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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.