Home / 27,149.98-37,489.79-20,423.95

Finding the Fourth Proportional to 27,149.98, 37,489.79 and 20,423.95

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Solution

The fourth proportional to 27,149.98, 37,489.79 and 20,423.95 is: 28,202.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,149.98 : 37,489.79 = 20,423.95 : x
  2. Step 2: Convert to fraction form
    27,149.98/37,489.79 = 20,423.95/x
  3. Step 3: Cross multiply
    27,149.98x = 37,489.79 × 20,423.95
  4. Step 4: Simplify right side
    27,149.98x = 765,689,306.90
  5. Step 5: Solve for x
    x = 765,689,306.90/27,149.98
  6. Step 6: Final answer
    x = 28,202.21

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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.