Home / 13,432.86-20,147.04-3,572.28

Finding the Fourth Proportional to 13,432.86, 20,147.04 and 3,572.28

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Solution

The fourth proportional to 13,432.86, 20,147.04 and 3,572.28 is: 5,357.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.86 : 20,147.04 = 3,572.28 : x
  2. Step 2: Convert to fraction form
    13,432.86/20,147.04 = 3,572.28/x
  3. Step 3: Cross multiply
    13,432.86x = 20,147.04 × 3,572.28
  4. Step 4: Simplify right side
    13,432.86x = 71,970,868.05
  5. Step 5: Solve for x
    x = 71,970,868.05/13,432.86
  6. Step 6: Final answer
    x = 5,357.82

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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.