Home / 22,704.60-31,331.85-13,144.89

Finding the Fourth Proportional to 22,704.60, 31,331.85 and 13,144.89

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Solution

The fourth proportional to 22,704.60, 31,331.85 and 13,144.89 is: 18,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,704.60 : 31,331.85 = 13,144.89 : x
  2. Step 2: Convert to fraction form
    22,704.60/31,331.85 = 13,144.89/x
  3. Step 3: Cross multiply
    22,704.60x = 31,331.85 × 13,144.89
  4. Step 4: Simplify right side
    22,704.60x = 411,853,721.75
  5. Step 5: Solve for x
    x = 411,853,721.75/22,704.60
  6. Step 6: Final answer
    x = 18,139.66

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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.