Home / 13,489.08-20,231.34-3,627.54

Finding the Fourth Proportional to 13,489.08, 20,231.34 and 3,627.54

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Solution

The fourth proportional to 13,489.08, 20,231.34 and 3,627.54 is: 5,440.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.08 : 20,231.34 = 3,627.54 : x
  2. Step 2: Convert to fraction form
    13,489.08/20,231.34 = 3,627.54/x
  3. Step 3: Cross multiply
    13,489.08x = 20,231.34 × 3,627.54
  4. Step 4: Simplify right side
    13,489.08x = 73,389,995.10
  5. Step 5: Solve for x
    x = 73,389,995.10/13,489.08
  6. Step 6: Final answer
    x = 5,440.70

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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.