Home / 20,065.32-27,691.13-12,107.41

Finding the Fourth Proportional to 20,065.32, 27,691.13 and 12,107.41

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Solution

The fourth proportional to 20,065.32, 27,691.13 and 12,107.41 is: 16,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.32 : 27,691.13 = 12,107.41 : x
  2. Step 2: Convert to fraction form
    20,065.32/27,691.13 = 12,107.41/x
  3. Step 3: Cross multiply
    20,065.32x = 27,691.13 × 12,107.41
  4. Step 4: Simplify right side
    20,065.32x = 335,267,825.31
  5. Step 5: Solve for x
    x = 335,267,825.31/20,065.32
  6. Step 6: Final answer
    x = 16,708.82

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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.