Home / 20,469.22-30,544.19-18,262.78

Finding the Fourth Proportional to 20,469.22, 30,544.19 and 18,262.78

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Solution

The fourth proportional to 20,469.22, 30,544.19 and 18,262.78 is: 27,251.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,469.22 : 30,544.19 = 18,262.78 : x
  2. Step 2: Convert to fraction form
    20,469.22/30,544.19 = 18,262.78/x
  3. Step 3: Cross multiply
    20,469.22x = 30,544.19 × 18,262.78
  4. Step 4: Simplify right side
    20,469.22x = 557,821,822.25
  5. Step 5: Solve for x
    x = 557,821,822.25/20,469.22
  6. Step 6: Final answer
    x = 27,251.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.