Home / 20,173.97-27,837.82-12,105.99

Finding the Fourth Proportional to 20,173.97, 27,837.82 and 12,105.99

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Solution

The fourth proportional to 20,173.97, 27,837.82 and 12,105.99 is: 16,704.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.97 : 27,837.82 = 12,105.99 : x
  2. Step 2: Convert to fraction form
    20,173.97/27,837.82 = 12,105.99/x
  3. Step 3: Cross multiply
    20,173.97x = 27,837.82 × 12,105.99
  4. Step 4: Simplify right side
    20,173.97x = 337,004,370.54
  5. Step 5: Solve for x
    x = 337,004,370.54/20,173.97
  6. Step 6: Final answer
    x = 16,704.91

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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.