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Finding the Fourth Proportional to 23,279.76, 34,919.97 and 6,639.80

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Solution

The fourth proportional to 23,279.76, 34,919.97 and 6,639.80 is: 9,959.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,279.76 : 34,919.97 = 6,639.80 : x
  2. Step 2: Convert to fraction form
    23,279.76/34,919.97 = 6,639.80/x
  3. Step 3: Cross multiply
    23,279.76x = 34,919.97 × 6,639.80
  4. Step 4: Simplify right side
    23,279.76x = 231,861,442.21
  5. Step 5: Solve for x
    x = 231,861,442.21/23,279.76
  6. Step 6: Final answer
    x = 9,959.79

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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.