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Finding the Fourth Proportional to 29,320.52, 43,980.80 and 8,260.56

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Solution

The fourth proportional to 29,320.52, 43,980.80 and 8,260.56 is: 12,390.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,320.52 : 43,980.80 = 8,260.56 : x
  2. Step 2: Convert to fraction form
    29,320.52/43,980.80 = 8,260.56/x
  3. Step 3: Cross multiply
    29,320.52x = 43,980.80 × 8,260.56
  4. Step 4: Simplify right side
    29,320.52x = 363,305,995.95
  5. Step 5: Solve for x
    x = 363,305,995.95/29,320.52
  6. Step 6: Final answer
    x = 12,390.85

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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.