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Finding the Fourth Proportional to 29,129.04, 43,695.20 and 8,352

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Solution

The fourth proportional to 29,129.04, 43,695.20 and 8,352 is: 12,528.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,129.04 : 43,695.20 = 8,352 : x
  2. Step 2: Convert to fraction form
    29,129.04/43,695.20 = 8,352/x
  3. Step 3: Cross multiply
    29,129.04x = 43,695.20 × 8,352
  4. Step 4: Simplify right side
    29,129.04x = 364,942,310.40
  5. Step 5: Solve for x
    x = 364,942,310.40/29,129.04
  6. Step 6: Final answer
    x = 12,528.47

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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.