Home / 22,972.38-31,700.76-12,899.58

Finding the Fourth Proportional to 22,972.38, 31,700.76 and 12,899.58

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Solution

The fourth proportional to 22,972.38, 31,700.76 and 12,899.58 is: 17,800.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,972.38 : 31,700.76 = 12,899.58 : x
  2. Step 2: Convert to fraction form
    22,972.38/31,700.76 = 12,899.58/x
  3. Step 3: Cross multiply
    22,972.38x = 31,700.76 × 12,899.58
  4. Step 4: Simplify right side
    22,972.38x = 408,926,489.68
  5. Step 5: Solve for x
    x = 408,926,489.68/22,972.38
  6. Step 6: Final answer
    x = 17,800.79

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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.