Home / 38,487.39-57,732.72-12,191.55

Finding the Fourth Proportional to 38,487.39, 57,732.72 and 12,191.55

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Solution

The fourth proportional to 38,487.39, 57,732.72 and 12,191.55 is: 18,287.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,487.39 : 57,732.72 = 12,191.55 : x
  2. Step 2: Convert to fraction form
    38,487.39/57,732.72 = 12,191.55/x
  3. Step 3: Cross multiply
    38,487.39x = 57,732.72 × 12,191.55
  4. Step 4: Simplify right side
    38,487.39x = 703,851,080.30
  5. Step 5: Solve for x
    x = 703,851,080.30/38,487.39
  6. Step 6: Final answer
    x = 18,287.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.