Home / 20,517.75-30,749.89-9,264.73

Finding the Fourth Proportional to 20,517.75, 30,749.89 and 9,264.73

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Solution

The fourth proportional to 20,517.75, 30,749.89 and 9,264.73 is: 13,885.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.75 : 30,749.89 = 9,264.73 : x
  2. Step 2: Convert to fraction form
    20,517.75/30,749.89 = 9,264.73/x
  3. Step 3: Cross multiply
    20,517.75x = 30,749.89 × 9,264.73
  4. Step 4: Simplify right side
    20,517.75x = 284,889,428.38
  5. Step 5: Solve for x
    x = 284,889,428.38/20,517.75
  6. Step 6: Final answer
    x = 13,885.02

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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.