Home / 22,540.46-31,106.39-12,469.09

Finding the Fourth Proportional to 22,540.46, 31,106.39 and 12,469.09

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Solution

The fourth proportional to 22,540.46, 31,106.39 and 12,469.09 is: 17,207.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,540.46 : 31,106.39 = 12,469.09 : x
  2. Step 2: Convert to fraction form
    22,540.46/31,106.39 = 12,469.09/x
  3. Step 3: Cross multiply
    22,540.46x = 31,106.39 × 12,469.09
  4. Step 4: Simplify right side
    22,540.46x = 387,868,376.49
  5. Step 5: Solve for x
    x = 387,868,376.49/22,540.46
  6. Step 6: Final answer
    x = 17,207.65

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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.