Home / 34,385.35-51,578.47-11,011.78

Finding the Fourth Proportional to 34,385.35, 51,578.47 and 11,011.78

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Solution

The fourth proportional to 34,385.35, 51,578.47 and 11,011.78 is: 16,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,385.35 : 51,578.47 = 11,011.78 : x
  2. Step 2: Convert to fraction form
    34,385.35/51,578.47 = 11,011.78/x
  3. Step 3: Cross multiply
    34,385.35x = 51,578.47 × 11,011.78
  4. Step 4: Simplify right side
    34,385.35x = 567,970,764.38
  5. Step 5: Solve for x
    x = 567,970,764.38/34,385.35
  6. Step 6: Final answer
    x = 16,517.81

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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.