Home / 20,289.30-30,436.38-8,601

Finding the Fourth Proportional to 20,289.30, 30,436.38 and 8,601

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Solution

The fourth proportional to 20,289.30, 30,436.38 and 8,601 is: 12,902.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289.30 : 30,436.38 = 8,601 : x
  2. Step 2: Convert to fraction form
    20,289.30/30,436.38 = 8,601/x
  3. Step 3: Cross multiply
    20,289.30x = 30,436.38 × 8,601
  4. Step 4: Simplify right side
    20,289.30x = 261,783,304.38
  5. Step 5: Solve for x
    x = 261,783,304.38/20,289.30
  6. Step 6: Final answer
    x = 12,902.53

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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.