Home / 31,982.92-47,974.38-8,608.75

Finding the Fourth Proportional to 31,982.92, 47,974.38 and 8,608.75

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Solution

The fourth proportional to 31,982.92, 47,974.38 and 8,608.75 is: 12,913.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,982.92 : 47,974.38 = 8,608.75 : x
  2. Step 2: Convert to fraction form
    31,982.92/47,974.38 = 8,608.75/x
  3. Step 3: Cross multiply
    31,982.92x = 47,974.38 × 8,608.75
  4. Step 4: Simplify right side
    31,982.92x = 412,999,443.83
  5. Step 5: Solve for x
    x = 412,999,443.83/31,982.92
  6. Step 6: Final answer
    x = 12,913.13

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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.