Home / 38,149.18-52,648.96-21,158.74

Finding the Fourth Proportional to 38,149.18, 52,648.96 and 21,158.74

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Solution

The fourth proportional to 38,149.18, 52,648.96 and 21,158.74 is: 29,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,149.18 : 52,648.96 = 21,158.74 : x
  2. Step 2: Convert to fraction form
    38,149.18/52,648.96 = 21,158.74/x
  3. Step 3: Cross multiply
    38,149.18x = 52,648.96 × 21,158.74
  4. Step 4: Simplify right side
    38,149.18x = 1,113,985,655.91
  5. Step 5: Solve for x
    x = 1,113,985,655.91/38,149.18
  6. Step 6: Final answer
    x = 29,200.78

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Similar ratio
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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.