Home / 13,432.23-20,149.29-3,571.29

Finding the Fourth Proportional to 13,432.23, 20,149.29 and 3,571.29

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Solution

The fourth proportional to 13,432.23, 20,149.29 and 3,571.29 is: 5,357.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.23 : 20,149.29 = 3,571.29 : x
  2. Step 2: Convert to fraction form
    13,432.23/20,149.29 = 3,571.29/x
  3. Step 3: Cross multiply
    13,432.23x = 20,149.29 × 3,571.29
  4. Step 4: Simplify right side
    13,432.23x = 71,958,957.88
  5. Step 5: Solve for x
    x = 71,958,957.88/13,432.23
  6. Step 6: Final answer
    x = 5,357.19

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1.5x scale

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.