Home / 20,249.15-27,932.12-12,177.18

Finding the Fourth Proportional to 20,249.15, 27,932.12 and 12,177.18

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Solution

The fourth proportional to 20,249.15, 27,932.12 and 12,177.18 is: 16,797.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.15 : 27,932.12 = 12,177.18 : x
  2. Step 2: Convert to fraction form
    20,249.15/27,932.12 = 12,177.18/x
  3. Step 3: Cross multiply
    20,249.15x = 27,932.12 × 12,177.18
  4. Step 4: Simplify right side
    20,249.15x = 340,134,392.14
  5. Step 5: Solve for x
    x = 340,134,392.14/20,249.15
  6. Step 6: Final answer
    x = 16,797.47

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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.