Home / 22,747.38-31,387.23-12,675.57

Finding the Fourth Proportional to 22,747.38, 31,387.23 and 12,675.57

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Solution

The fourth proportional to 22,747.38, 31,387.23 and 12,675.57 is: 17,489.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,747.38 : 31,387.23 = 12,675.57 : x
  2. Step 2: Convert to fraction form
    22,747.38/31,387.23 = 12,675.57/x
  3. Step 3: Cross multiply
    22,747.38x = 31,387.23 × 12,675.57
  4. Step 4: Simplify right side
    22,747.38x = 397,851,030.97
  5. Step 5: Solve for x
    x = 397,851,030.97/22,747.38
  6. Step 6: Final answer
    x = 17,489.97

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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.