Home / 19,680.03-29,489.05-12,273.39

Finding the Fourth Proportional to 19,680.03, 29,489.05 and 12,273.39

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Solution

The fourth proportional to 19,680.03, 29,489.05 and 12,273.39 is: 18,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.03 : 29,489.05 = 12,273.39 : x
  2. Step 2: Convert to fraction form
    19,680.03/29,489.05 = 12,273.39/x
  3. Step 3: Cross multiply
    19,680.03x = 29,489.05 × 12,273.39
  4. Step 4: Simplify right side
    19,680.03x = 361,930,626.72
  5. Step 5: Solve for x
    x = 361,930,626.72/19,680.03
  6. Step 6: Final answer
    x = 18,390.76

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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.