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Finding the Fourth Proportional to 26,932.40, 40,404.42 and 8,211.96

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Solution

The fourth proportional to 26,932.40, 40,404.42 and 8,211.96 is: 12,319.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,932.40 : 40,404.42 = 8,211.96 : x
  2. Step 2: Convert to fraction form
    26,932.40/40,404.42 = 8,211.96/x
  3. Step 3: Cross multiply
    26,932.40x = 40,404.42 × 8,211.96
  4. Step 4: Simplify right side
    26,932.40x = 331,799,480.86
  5. Step 5: Solve for x
    x = 331,799,480.86/26,932.40
  6. Step 6: Final answer
    x = 12,319.71

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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.