Home / 20,250.11-30,348.66-10,879.18

Finding the Fourth Proportional to 20,250.11, 30,348.66 and 10,879.18

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Solution

The fourth proportional to 20,250.11, 30,348.66 and 10,879.18 is: 16,304.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.11 : 30,348.66 = 10,879.18 : x
  2. Step 2: Convert to fraction form
    20,250.11/30,348.66 = 10,879.18/x
  3. Step 3: Cross multiply
    20,250.11x = 30,348.66 × 10,879.18
  4. Step 4: Simplify right side
    20,250.11x = 330,168,534.90
  5. Step 5: Solve for x
    x = 330,168,534.90/20,250.11
  6. Step 6: Final answer
    x = 16,304.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.