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Finding the Fourth Proportional to 23,129.40, 34,694.10 and 8,338.80

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Solution

The fourth proportional to 23,129.40, 34,694.10 and 8,338.80 is: 12,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129.40 : 34,694.10 = 8,338.80 : x
  2. Step 2: Convert to fraction form
    23,129.40/34,694.10 = 8,338.80/x
  3. Step 3: Cross multiply
    23,129.40x = 34,694.10 × 8,338.80
  4. Step 4: Simplify right side
    23,129.40x = 289,307,161.08
  5. Step 5: Solve for x
    x = 289,307,161.08/23,129.40
  6. Step 6: Final answer
    x = 12,508.20

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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.