Home / 20,658.44-30,982.12-8,968.88

Finding the Fourth Proportional to 20,658.44, 30,982.12 and 8,968.88

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Solution

The fourth proportional to 20,658.44, 30,982.12 and 8,968.88 is: 13,450.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658.44 : 30,982.12 = 8,968.88 : x
  2. Step 2: Convert to fraction form
    20,658.44/30,982.12 = 8,968.88/x
  3. Step 3: Cross multiply
    20,658.44x = 30,982.12 × 8,968.88
  4. Step 4: Simplify right side
    20,658.44x = 277,874,739.09
  5. Step 5: Solve for x
    x = 277,874,739.09/20,658.44
  6. Step 6: Final answer
    x = 13,450.91

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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.