Home / 22,640.97-31,246.52-13,212.57

Finding the Fourth Proportional to 22,640.97, 31,246.52 and 13,212.57

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Solution

The fourth proportional to 22,640.97, 31,246.52 and 13,212.57 is: 18,234.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,640.97 : 31,246.52 = 13,212.57 : x
  2. Step 2: Convert to fraction form
    22,640.97/31,246.52 = 13,212.57/x
  3. Step 3: Cross multiply
    22,640.97x = 31,246.52 × 13,212.57
  4. Step 4: Simplify right side
    22,640.97x = 412,846,766.69
  5. Step 5: Solve for x
    x = 412,846,766.69/22,640.97
  6. Step 6: Final answer
    x = 18,234.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.