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Finding the Fourth Proportional to 38,353.80, 52,926.24 and 21,587.88

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Solution

The fourth proportional to 38,353.80, 52,926.24 and 21,587.88 is: 29,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,353.80 : 52,926.24 = 21,587.88 : x
  2. Step 2: Convert to fraction form
    38,353.80/52,926.24 = 21,587.88/x
  3. Step 3: Cross multiply
    38,353.80x = 52,926.24 × 21,587.88
  4. Step 4: Simplify right side
    38,353.80x = 1,142,565,317.97
  5. Step 5: Solve for x
    x = 1,142,565,317.97/38,353.80
  6. Step 6: Final answer
    x = 29,790.15

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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.