Home / 34,481.36-51,744.72-18,909.92

Finding the Fourth Proportional to 34,481.36, 51,744.72 and 18,909.92

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Solution

The fourth proportional to 34,481.36, 51,744.72 and 18,909.92 is: 28,377.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,481.36 : 51,744.72 = 18,909.92 : x
  2. Step 2: Convert to fraction form
    34,481.36/51,744.72 = 18,909.92/x
  3. Step 3: Cross multiply
    34,481.36x = 51,744.72 × 18,909.92
  4. Step 4: Simplify right side
    34,481.36x = 978,488,515.62
  5. Step 5: Solve for x
    x = 978,488,515.62/34,481.36
  6. Step 6: Final answer
    x = 28,377.32

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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.