Home / 20,306.68-30,456.88-7,832.54

Finding the Fourth Proportional to 20,306.68, 30,456.88 and 7,832.54

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Solution

The fourth proportional to 20,306.68, 30,456.88 and 7,832.54 is: 11,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,306.68 : 30,456.88 = 7,832.54 : x
  2. Step 2: Convert to fraction form
    20,306.68/30,456.88 = 7,832.54/x
  3. Step 3: Cross multiply
    20,306.68x = 30,456.88 × 7,832.54
  4. Step 4: Simplify right side
    20,306.68x = 238,554,787.44
  5. Step 5: Solve for x
    x = 238,554,787.44/20,306.68
  6. Step 6: Final answer
    x = 11,747.60

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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.