Home / 20,330.89-30,481.27-9,651.96

Finding the Fourth Proportional to 20,330.89, 30,481.27 and 9,651.96

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Solution

The fourth proportional to 20,330.89, 30,481.27 and 9,651.96 is: 14,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.89 : 30,481.27 = 9,651.96 : x
  2. Step 2: Convert to fraction form
    20,330.89/30,481.27 = 9,651.96/x
  3. Step 3: Cross multiply
    20,330.89x = 30,481.27 × 9,651.96
  4. Step 4: Simplify right side
    20,330.89x = 294,203,974.66
  5. Step 5: Solve for x
    x = 294,203,974.66/20,330.89
  6. Step 6: Final answer
    x = 14,470.79

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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.