Home / 29,660.31-40,930.25-16,230.66

Finding the Fourth Proportional to 29,660.31, 40,930.25 and 16,230.66

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Solution

The fourth proportional to 29,660.31, 40,930.25 and 16,230.66 is: 22,397.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,660.31 : 40,930.25 = 16,230.66 : x
  2. Step 2: Convert to fraction form
    29,660.31/40,930.25 = 16,230.66/x
  3. Step 3: Cross multiply
    29,660.31x = 40,930.25 × 16,230.66
  4. Step 4: Simplify right side
    29,660.31x = 664,324,890.31
  5. Step 5: Solve for x
    x = 664,324,890.31/29,660.31
  6. Step 6: Final answer
    x = 22,397.77

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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.