Home / 36,911.31-55,375.79-11,951.39

Finding the Fourth Proportional to 36,911.31, 55,375.79 and 11,951.39

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Solution

The fourth proportional to 36,911.31, 55,375.79 and 11,951.39 is: 17,929.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,911.31 : 55,375.79 = 11,951.39 : x
  2. Step 2: Convert to fraction form
    36,911.31/55,375.79 = 11,951.39/x
  3. Step 3: Cross multiply
    36,911.31x = 55,375.79 × 11,951.39
  4. Step 4: Simplify right side
    36,911.31x = 661,817,326.21
  5. Step 5: Solve for x
    x = 661,817,326.21/36,911.31
  6. Step 6: Final answer
    x = 17,929.93

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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.