Home / 22,939.75-31,654.11-13,381.66

Finding the Fourth Proportional to 22,939.75, 31,654.11 and 13,381.66

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Solution

The fourth proportional to 22,939.75, 31,654.11 and 13,381.66 is: 18,465.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,939.75 : 31,654.11 = 13,381.66 : x
  2. Step 2: Convert to fraction form
    22,939.75/31,654.11 = 13,381.66/x
  3. Step 3: Cross multiply
    22,939.75x = 31,654.11 × 13,381.66
  4. Step 4: Simplify right side
    22,939.75x = 423,584,537.62
  5. Step 5: Solve for x
    x = 423,584,537.62/22,939.75
  6. Step 6: Final answer
    x = 18,465.09

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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.