Home / 13,869.38-20,803.88-3,481.14

Finding the Fourth Proportional to 13,869.38, 20,803.88 and 3,481.14

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Solution

The fourth proportional to 13,869.38, 20,803.88 and 3,481.14 is: 5,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.38 : 20,803.88 = 3,481.14 : x
  2. Step 2: Convert to fraction form
    13,869.38/20,803.88 = 3,481.14/x
  3. Step 3: Cross multiply
    13,869.38x = 20,803.88 × 3,481.14
  4. Step 4: Simplify right side
    13,869.38x = 72,421,218.82
  5. Step 5: Solve for x
    x = 72,421,218.82/13,869.38
  6. Step 6: Final answer
    x = 5,221.66

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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.