Home / 20,527.62-30,791.38-15,854.42

Finding the Fourth Proportional to 20,527.62, 30,791.38 and 15,854.42

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Solution

The fourth proportional to 20,527.62, 30,791.38 and 15,854.42 is: 23,781.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.62 : 30,791.38 = 15,854.42 : x
  2. Step 2: Convert to fraction form
    20,527.62/30,791.38 = 15,854.42/x
  3. Step 3: Cross multiply
    20,527.62x = 30,791.38 × 15,854.42
  4. Step 4: Simplify right side
    20,527.62x = 488,179,470.90
  5. Step 5: Solve for x
    x = 488,179,470.90/20,527.62
  6. Step 6: Final answer
    x = 23,781.59

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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.