Home / 20,378.11-30,571.56-6,337.86

Finding the Fourth Proportional to 20,378.11, 30,571.56 and 6,337.86

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Solution

The fourth proportional to 20,378.11, 30,571.56 and 6,337.86 is: 9,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378.11 : 30,571.56 = 6,337.86 : x
  2. Step 2: Convert to fraction form
    20,378.11/30,571.56 = 6,337.86/x
  3. Step 3: Cross multiply
    20,378.11x = 30,571.56 × 6,337.86
  4. Step 4: Simplify right side
    20,378.11x = 193,758,082.71
  5. Step 5: Solve for x
    x = 193,758,082.71/20,378.11
  6. Step 6: Final answer
    x = 9,508.15

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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.