Home / 20,251.62-30,399.30-17,000.28

Finding the Fourth Proportional to 20,251.62, 30,399.30 and 17,000.28

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Solution

The fourth proportional to 20,251.62, 30,399.30 and 17,000.28 is: 25,518.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.62 : 30,399.30 = 17,000.28 : x
  2. Step 2: Convert to fraction form
    20,251.62/30,399.30 = 17,000.28/x
  3. Step 3: Cross multiply
    20,251.62x = 30,399.30 × 17,000.28
  4. Step 4: Simplify right side
    20,251.62x = 516,796,611.80
  5. Step 5: Solve for x
    x = 516,796,611.80/20,251.62
  6. Step 6: Final answer
    x = 25,518.78

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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.