Home / 21,713.92-29,951.04-13,747.84

Finding the Fourth Proportional to 21,713.92, 29,951.04 and 13,747.84

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Solution

The fourth proportional to 21,713.92, 29,951.04 and 13,747.84 is: 18,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,713.92 : 29,951.04 = 13,747.84 : x
  2. Step 2: Convert to fraction form
    21,713.92/29,951.04 = 13,747.84/x
  3. Step 3: Cross multiply
    21,713.92x = 29,951.04 × 13,747.84
  4. Step 4: Simplify right side
    21,713.92x = 411,762,105.75
  5. Step 5: Solve for x
    x = 411,762,105.75/21,713.92
  6. Step 6: Final answer
    x = 18,963.05

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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.