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Finding the Fourth Proportional to 20,019.68, 30,023.94 and 6,867.62

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Solution

The fourth proportional to 20,019.68, 30,023.94 and 6,867.62 is: 10,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.68 : 30,023.94 = 6,867.62 : x
  2. Step 2: Convert to fraction form
    20,019.68/30,023.94 = 6,867.62/x
  3. Step 3: Cross multiply
    20,019.68x = 30,023.94 × 6,867.62
  4. Step 4: Simplify right side
    20,019.68x = 206,193,010.82
  5. Step 5: Solve for x
    x = 206,193,010.82/20,019.68
  6. Step 6: Final answer
    x = 10,299.52

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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.