Home / 13,489.28-20,233.84-3,627.72

Finding the Fourth Proportional to 13,489.28, 20,233.84 and 3,627.72

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Solution

The fourth proportional to 13,489.28, 20,233.84 and 3,627.72 is: 5,441.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.28 : 20,233.84 = 3,627.72 : x
  2. Step 2: Convert to fraction form
    13,489.28/20,233.84 = 3,627.72/x
  3. Step 3: Cross multiply
    13,489.28x = 20,233.84 × 3,627.72
  4. Step 4: Simplify right side
    13,489.28x = 73,402,706.04
  5. Step 5: Solve for x
    x = 73,402,706.04/13,489.28
  6. Step 6: Final answer
    x = 5,441.56

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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.