Home / 43,481.70-65,247.17-18,519.15

Finding the Fourth Proportional to 43,481.70, 65,247.17 and 18,519.15

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Solution

The fourth proportional to 43,481.70, 65,247.17 and 18,519.15 is: 27,789.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,481.70 : 65,247.17 = 18,519.15 : x
  2. Step 2: Convert to fraction form
    43,481.70/65,247.17 = 18,519.15/x
  3. Step 3: Cross multiply
    43,481.70x = 65,247.17 × 18,519.15
  4. Step 4: Simplify right side
    43,481.70x = 1,208,322,128.31
  5. Step 5: Solve for x
    x = 1,208,322,128.31/43,481.70
  6. Step 6: Final answer
    x = 27,789.21

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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.