Home / 20,244.12-27,936.18-12,694.50

Finding the Fourth Proportional to 20,244.12, 27,936.18 and 12,694.50

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Solution

The fourth proportional to 20,244.12, 27,936.18 and 12,694.50 is: 17,517.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,244.12 : 27,936.18 = 12,694.50 : x
  2. Step 2: Convert to fraction form
    20,244.12/27,936.18 = 12,694.50/x
  3. Step 3: Cross multiply
    20,244.12x = 27,936.18 × 12,694.50
  4. Step 4: Simplify right side
    20,244.12x = 354,635,837.01
  5. Step 5: Solve for x
    x = 354,635,837.01/20,244.12
  6. Step 6: Final answer
    x = 17,517.97

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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.