Home / 20,654.82-28,517.13-14,382.18

Finding the Fourth Proportional to 20,654.82, 28,517.13 and 14,382.18

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Solution

The fourth proportional to 20,654.82, 28,517.13 and 14,382.18 is: 19,856.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.82 : 28,517.13 = 14,382.18 : x
  2. Step 2: Convert to fraction form
    20,654.82/28,517.13 = 14,382.18/x
  3. Step 3: Cross multiply
    20,654.82x = 28,517.13 × 14,382.18
  4. Step 4: Simplify right side
    20,654.82x = 410,138,496.74
  5. Step 5: Solve for x
    x = 410,138,496.74/20,654.82
  6. Step 6: Final answer
    x = 19,856.79

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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.