Home / 21,160.28-29,174.22-13,592.88

Finding the Fourth Proportional to 21,160.28, 29,174.22 and 13,592.88

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Solution

The fourth proportional to 21,160.28, 29,174.22 and 13,592.88 is: 18,740.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160.28 : 29,174.22 = 13,592.88 : x
  2. Step 2: Convert to fraction form
    21,160.28/29,174.22 = 13,592.88/x
  3. Step 3: Cross multiply
    21,160.28x = 29,174.22 × 13,592.88
  4. Step 4: Simplify right side
    21,160.28x = 396,561,671.55
  5. Step 5: Solve for x
    x = 396,561,671.55/21,160.28
  6. Step 6: Final answer
    x = 18,740.85

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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.