Home / 20,199.12-27,874.29-11,246.43

Finding the Fourth Proportional to 20,199.12, 27,874.29 and 11,246.43

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Solution

The fourth proportional to 20,199.12, 27,874.29 and 11,246.43 is: 15,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.12 : 27,874.29 = 11,246.43 : x
  2. Step 2: Convert to fraction form
    20,199.12/27,874.29 = 11,246.43/x
  3. Step 3: Cross multiply
    20,199.12x = 27,874.29 × 11,246.43
  4. Step 4: Simplify right side
    20,199.12x = 313,486,251.28
  5. Step 5: Solve for x
    x = 313,486,251.28/20,199.12
  6. Step 6: Final answer
    x = 15,519.80

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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.