Home / 22,745.97-31,388.64-12,673.89

Finding the Fourth Proportional to 22,745.97, 31,388.64 and 12,673.89

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Solution

The fourth proportional to 22,745.97, 31,388.64 and 12,673.89 is: 17,489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.97 : 31,388.64 = 12,673.89 : x
  2. Step 2: Convert to fraction form
    22,745.97/31,388.64 = 12,673.89/x
  3. Step 3: Cross multiply
    22,745.97x = 31,388.64 × 12,673.89
  4. Step 4: Simplify right side
    22,745.97x = 397,816,170.61
  5. Step 5: Solve for x
    x = 397,816,170.61/22,745.97
  6. Step 6: Final answer
    x = 17,489.52

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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.