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Finding the Fourth Proportional to 29,659.40, 40,929.97 and 16,230.65

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Solution

The fourth proportional to 29,659.40, 40,929.97 and 16,230.65 is: 22,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,659.40 : 40,929.97 = 16,230.65 : x
  2. Step 2: Convert to fraction form
    29,659.40/40,929.97 = 16,230.65/x
  3. Step 3: Cross multiply
    29,659.40x = 40,929.97 × 16,230.65
  4. Step 4: Simplify right side
    29,659.40x = 664,319,936.43
  5. Step 5: Solve for x
    x = 664,319,936.43/29,659.40
  6. Step 6: Final answer
    x = 22,398.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.