Home / 20,314.41-30,475.43-9,221.88

Finding the Fourth Proportional to 20,314.41, 30,475.43 and 9,221.88

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Solution

The fourth proportional to 20,314.41, 30,475.43 and 9,221.88 is: 13,834.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.41 : 30,475.43 = 9,221.88 : x
  2. Step 2: Convert to fraction form
    20,314.41/30,475.43 = 9,221.88/x
  3. Step 3: Cross multiply
    20,314.41x = 30,475.43 × 9,221.88
  4. Step 4: Simplify right side
    20,314.41x = 281,040,712.30
  5. Step 5: Solve for x
    x = 281,040,712.30/20,314.41
  6. Step 6: Final answer
    x = 13,834.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.