Home / 13,432.72-20,149.04-3,571.99

Finding the Fourth Proportional to 13,432.72, 20,149.04 and 3,571.99

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Solution

The fourth proportional to 13,432.72, 20,149.04 and 3,571.99 is: 5,357.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.72 : 20,149.04 = 3,571.99 : x
  2. Step 2: Convert to fraction form
    13,432.72/20,149.04 = 3,571.99/x
  3. Step 3: Cross multiply
    13,432.72x = 20,149.04 × 3,571.99
  4. Step 4: Simplify right side
    13,432.72x = 71,972,169.39
  5. Step 5: Solve for x
    x = 71,972,169.39/13,432.72
  6. Step 6: Final answer
    x = 5,357.97

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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.