Home / 20,122.97-30,177.62-6,972.28

Finding the Fourth Proportional to 20,122.97, 30,177.62 and 6,972.28

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Solution

The fourth proportional to 20,122.97, 30,177.62 and 6,972.28 is: 10,456.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.97 : 30,177.62 = 6,972.28 : x
  2. Step 2: Convert to fraction form
    20,122.97/30,177.62 = 6,972.28/x
  3. Step 3: Cross multiply
    20,122.97x = 30,177.62 × 6,972.28
  4. Step 4: Simplify right side
    20,122.97x = 210,406,665.49
  5. Step 5: Solve for x
    x = 210,406,665.49/20,122.97
  6. Step 6: Final answer
    x = 10,456.04

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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.