Home / 22,745.20-31,388.10-12,673.61

Finding the Fourth Proportional to 22,745.20, 31,388.10 and 12,673.61

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Solution

The fourth proportional to 22,745.20, 31,388.10 and 12,673.61 is: 17,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.20 : 31,388.10 = 12,673.61 : x
  2. Step 2: Convert to fraction form
    22,745.20/31,388.10 = 12,673.61/x
  3. Step 3: Cross multiply
    22,745.20x = 31,388.10 × 12,673.61
  4. Step 4: Simplify right side
    22,745.20x = 397,800,538.04
  5. Step 5: Solve for x
    x = 397,800,538.04/22,745.20
  6. Step 6: Final answer
    x = 17,489.43

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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.