Home / 31,389.20-43,306.52-17,775.38

Finding the Fourth Proportional to 31,389.20, 43,306.52 and 17,775.38

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Solution

The fourth proportional to 31,389.20, 43,306.52 and 17,775.38 is: 24,524.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.20 : 43,306.52 = 17,775.38 : x
  2. Step 2: Convert to fraction form
    31,389.20/43,306.52 = 17,775.38/x
  3. Step 3: Cross multiply
    31,389.20x = 43,306.52 × 17,775.38
  4. Step 4: Simplify right side
    31,389.20x = 769,789,849.48
  5. Step 5: Solve for x
    x = 769,789,849.48/31,389.20
  6. Step 6: Final answer
    x = 24,524.04

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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.