Home / 13,481.38-20,222.07-3,621.66

Finding the Fourth Proportional to 13,481.38, 20,222.07 and 3,621.66

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Solution

The fourth proportional to 13,481.38, 20,222.07 and 3,621.66 is: 5,432.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.38 : 20,222.07 = 3,621.66 : x
  2. Step 2: Convert to fraction form
    13,481.38/20,222.07 = 3,621.66/x
  3. Step 3: Cross multiply
    13,481.38x = 20,222.07 × 3,621.66
  4. Step 4: Simplify right side
    13,481.38x = 73,237,462.04
  5. Step 5: Solve for x
    x = 73,237,462.04/13,481.38
  6. Step 6: Final answer
    x = 5,432.49

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Similar ratio
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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.