Home / 20,080.28-30,079.38-9,391.34

Finding the Fourth Proportional to 20,080.28, 30,079.38 and 9,391.34

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Solution

The fourth proportional to 20,080.28, 30,079.38 and 9,391.34 is: 14,067.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.28 : 30,079.38 = 9,391.34 : x
  2. Step 2: Convert to fraction form
    20,080.28/30,079.38 = 9,391.34/x
  3. Step 3: Cross multiply
    20,080.28x = 30,079.38 × 9,391.34
  4. Step 4: Simplify right side
    20,080.28x = 282,485,684.57
  5. Step 5: Solve for x
    x = 282,485,684.57/20,080.28
  6. Step 6: Final answer
    x = 14,067.82

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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.