Home / 22,868.11-31,558.17-13,310.38

Finding the Fourth Proportional to 22,868.11, 31,558.17 and 13,310.38

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Solution

The fourth proportional to 22,868.11, 31,558.17 and 13,310.38 is: 18,368.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,868.11 : 31,558.17 = 13,310.38 : x
  2. Step 2: Convert to fraction form
    22,868.11/31,558.17 = 13,310.38/x
  3. Step 3: Cross multiply
    22,868.11x = 31,558.17 × 13,310.38
  4. Step 4: Simplify right side
    22,868.11x = 420,051,234.80
  5. Step 5: Solve for x
    x = 420,051,234.80/22,868.11
  6. Step 6: Final answer
    x = 18,368.43

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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.