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Finding the Fourth Proportional to 27,123.76, 40,685.10 and 7,404.04

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Solution

The fourth proportional to 27,123.76, 40,685.10 and 7,404.04 is: 11,105.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,123.76 : 40,685.10 = 7,404.04 : x
  2. Step 2: Convert to fraction form
    27,123.76/40,685.10 = 7,404.04/x
  3. Step 3: Cross multiply
    27,123.76x = 40,685.10 × 7,404.04
  4. Step 4: Simplify right side
    27,123.76x = 301,234,107.80
  5. Step 5: Solve for x
    x = 301,234,107.80/27,123.76
  6. Step 6: Final answer
    x = 11,105.91

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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.