Home / 13,442.24-20,163.33-3,581.55

Finding the Fourth Proportional to 13,442.24, 20,163.33 and 3,581.55

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Solution

The fourth proportional to 13,442.24, 20,163.33 and 3,581.55 is: 5,372.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.24 : 20,163.33 = 3,581.55 : x
  2. Step 2: Convert to fraction form
    13,442.24/20,163.33 = 3,581.55/x
  3. Step 3: Cross multiply
    13,442.24x = 20,163.33 × 3,581.55
  4. Step 4: Simplify right side
    13,442.24x = 72,215,974.56
  5. Step 5: Solve for x
    x = 72,215,974.56/13,442.24
  6. Step 6: Final answer
    x = 5,372.32

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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.