Home / 20,167.11-30,239.60-15,475.41

Finding the Fourth Proportional to 20,167.11, 30,239.60 and 15,475.41

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Solution

The fourth proportional to 20,167.11, 30,239.60 and 15,475.41 is: 23,204.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.11 : 30,239.60 = 15,475.41 : x
  2. Step 2: Convert to fraction form
    20,167.11/30,239.60 = 15,475.41/x
  3. Step 3: Cross multiply
    20,167.11x = 30,239.60 × 15,475.41
  4. Step 4: Simplify right side
    20,167.11x = 467,970,130.86
  5. Step 5: Solve for x
    x = 467,970,130.86/20,167.11
  6. Step 6: Final answer
    x = 23,204.62

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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.