Home / 20,042.12-27,659.12-12,086.92

Finding the Fourth Proportional to 20,042.12, 27,659.12 and 12,086.92

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Solution

The fourth proportional to 20,042.12, 27,659.12 and 12,086.92 is: 16,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.12 : 27,659.12 = 12,086.92 : x
  2. Step 2: Convert to fraction form
    20,042.12/27,659.12 = 12,086.92/x
  3. Step 3: Cross multiply
    20,042.12x = 27,659.12 × 12,086.92
  4. Step 4: Simplify right side
    20,042.12x = 334,313,570.71
  5. Step 5: Solve for x
    x = 334,313,570.71/20,042.12
  6. Step 6: Final answer
    x = 16,680.55

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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.