Home / 20,185.14-27,851.13-12,227.70

Finding the Fourth Proportional to 20,185.14, 27,851.13 and 12,227.70

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Solution

The fourth proportional to 20,185.14, 27,851.13 and 12,227.70 is: 16,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.14 : 27,851.13 = 12,227.70 : x
  2. Step 2: Convert to fraction form
    20,185.14/27,851.13 = 12,227.70/x
  3. Step 3: Cross multiply
    20,185.14x = 27,851.13 × 12,227.70
  4. Step 4: Simplify right side
    20,185.14x = 340,555,262.30
  5. Step 5: Solve for x
    x = 340,555,262.30/20,185.14
  6. Step 6: Final answer
    x = 16,871.58

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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.