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Finding the Fourth Proportional to 20,019.94, 30,046.11 and 10,162.03

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Solution

The fourth proportional to 20,019.94, 30,046.11 and 10,162.03 is: 15,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.94 : 30,046.11 = 10,162.03 : x
  2. Step 2: Convert to fraction form
    20,019.94/30,046.11 = 10,162.03/x
  3. Step 3: Cross multiply
    20,019.94x = 30,046.11 × 10,162.03
  4. Step 4: Simplify right side
    20,019.94x = 305,329,471.20
  5. Step 5: Solve for x
    x = 305,329,471.20/20,019.94
  6. Step 6: Final answer
    x = 15,251.27

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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.