Home / 20,101.19-30,142.20-9,007.97

Finding the Fourth Proportional to 20,101.19, 30,142.20 and 9,007.97

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Solution

The fourth proportional to 20,101.19, 30,142.20 and 9,007.97 is: 13,507.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.19 : 30,142.20 = 9,007.97 : x
  2. Step 2: Convert to fraction form
    20,101.19/30,142.20 = 9,007.97/x
  3. Step 3: Cross multiply
    20,101.19x = 30,142.20 × 9,007.97
  4. Step 4: Simplify right side
    20,101.19x = 271,520,033.33
  5. Step 5: Solve for x
    x = 271,520,033.33/20,101.19
  6. Step 6: Final answer
    x = 13,507.66

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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.