Home / 22,615.97-31,209.55-12,544.19

Finding the Fourth Proportional to 22,615.97, 31,209.55 and 12,544.19

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Solution

The fourth proportional to 22,615.97, 31,209.55 and 12,544.19 is: 17,310.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.97 : 31,209.55 = 12,544.19 : x
  2. Step 2: Convert to fraction form
    22,615.97/31,209.55 = 12,544.19/x
  3. Step 3: Cross multiply
    22,615.97x = 31,209.55 × 12,544.19
  4. Step 4: Simplify right side
    22,615.97x = 391,498,571.68
  5. Step 5: Solve for x
    x = 391,498,571.68/22,615.97
  6. Step 6: Final answer
    x = 17,310.71

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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.