Home / 18,841.94-28,262.92-13,680.62

Finding the Fourth Proportional to 18,841.94, 28,262.92 and 13,680.62

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Solution

The fourth proportional to 18,841.94, 28,262.92 and 13,680.62 is: 20,520.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,841.94 : 28,262.92 = 13,680.62 : x
  2. Step 2: Convert to fraction form
    18,841.94/28,262.92 = 13,680.62/x
  3. Step 3: Cross multiply
    18,841.94x = 28,262.92 × 13,680.62
  4. Step 4: Simplify right side
    18,841.94x = 386,654,268.61
  5. Step 5: Solve for x
    x = 386,654,268.61/18,841.94
  6. Step 6: Final answer
    x = 20,520.94

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Similar ratio
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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.