Home / 31,961.96-47,949.85-12,240.52

Finding the Fourth Proportional to 31,961.96, 47,949.85 and 12,240.52

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Solution

The fourth proportional to 31,961.96, 47,949.85 and 12,240.52 is: 18,363.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,961.96 : 47,949.85 = 12,240.52 : x
  2. Step 2: Convert to fraction form
    31,961.96/47,949.85 = 12,240.52/x
  3. Step 3: Cross multiply
    31,961.96x = 47,949.85 × 12,240.52
  4. Step 4: Simplify right side
    31,961.96x = 586,930,993.35
  5. Step 5: Solve for x
    x = 586,930,993.35/31,961.96
  6. Step 6: Final answer
    x = 18,363.42

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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.