Home / 20,398.29-30,597.42-7,251.18

Finding the Fourth Proportional to 20,398.29, 30,597.42 and 7,251.18

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Solution

The fourth proportional to 20,398.29, 30,597.42 and 7,251.18 is: 10,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,398.29 : 30,597.42 = 7,251.18 : x
  2. Step 2: Convert to fraction form
    20,398.29/30,597.42 = 7,251.18/x
  3. Step 3: Cross multiply
    20,398.29x = 30,597.42 × 7,251.18
  4. Step 4: Simplify right side
    20,398.29x = 221,867,399.96
  5. Step 5: Solve for x
    x = 221,867,399.96/20,398.29
  6. Step 6: Final answer
    x = 10,876.76

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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.