Home / 33,138.53-45,716.28-22,379.90

Finding the Fourth Proportional to 33,138.53, 45,716.28 and 22,379.90

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Solution

The fourth proportional to 33,138.53, 45,716.28 and 22,379.90 is: 30,874.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,138.53 : 45,716.28 = 22,379.90 : x
  2. Step 2: Convert to fraction form
    33,138.53/45,716.28 = 22,379.90/x
  3. Step 3: Cross multiply
    33,138.53x = 45,716.28 × 22,379.90
  4. Step 4: Simplify right side
    33,138.53x = 1,023,125,774.77
  5. Step 5: Solve for x
    x = 1,023,125,774.77/33,138.53
  6. Step 6: Final answer
    x = 30,874.21

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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.