Home / 36,951.75-55,436.40-11,991.87

Finding the Fourth Proportional to 36,951.75, 55,436.40 and 11,991.87

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Solution

The fourth proportional to 36,951.75, 55,436.40 and 11,991.87 is: 17,990.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,951.75 : 55,436.40 = 11,991.87 : x
  2. Step 2: Convert to fraction form
    36,951.75/55,436.40 = 11,991.87/x
  3. Step 3: Cross multiply
    36,951.75x = 55,436.40 × 11,991.87
  4. Step 4: Simplify right side
    36,951.75x = 664,786,102.07
  5. Step 5: Solve for x
    x = 664,786,102.07/36,951.75
  6. Step 6: Final answer
    x = 17,990.65

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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.