Home / 20,469.24-30,712.50-8,625.96

Finding the Fourth Proportional to 20,469.24, 30,712.50 and 8,625.96

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Solution

The fourth proportional to 20,469.24, 30,712.50 and 8,625.96 is: 12,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,469.24 : 30,712.50 = 8,625.96 : x
  2. Step 2: Convert to fraction form
    20,469.24/30,712.50 = 8,625.96/x
  3. Step 3: Cross multiply
    20,469.24x = 30,712.50 × 8,625.96
  4. Step 4: Simplify right side
    20,469.24x = 264,924,796.50
  5. Step 5: Solve for x
    x = 264,924,796.50/20,469.24
  6. Step 6: Final answer
    x = 12,942.58

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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.