Home / 21,951.14-30,280.24-13,882.31

Finding the Fourth Proportional to 21,951.14, 30,280.24 and 13,882.31

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Solution

The fourth proportional to 21,951.14, 30,280.24 and 13,882.31 is: 19,149.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,951.14 : 30,280.24 = 13,882.31 : x
  2. Step 2: Convert to fraction form
    21,951.14/30,280.24 = 13,882.31/x
  3. Step 3: Cross multiply
    21,951.14x = 30,280.24 × 13,882.31
  4. Step 4: Simplify right side
    21,951.14x = 420,359,527.20
  5. Step 5: Solve for x
    x = 420,359,527.20/21,951.14
  6. Step 6: Final answer
    x = 19,149.78

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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.