Home / 20,121.24-30,185.10-6,267

Finding the Fourth Proportional to 20,121.24, 30,185.10 and 6,267

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Solution

The fourth proportional to 20,121.24, 30,185.10 and 6,267 is: 9,401.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121.24 : 30,185.10 = 6,267 : x
  2. Step 2: Convert to fraction form
    20,121.24/30,185.10 = 6,267/x
  3. Step 3: Cross multiply
    20,121.24x = 30,185.10 × 6,267
  4. Step 4: Simplify right side
    20,121.24x = 189,170,021.70
  5. Step 5: Solve for x
    x = 189,170,021.70/20,121.24
  6. Step 6: Final answer
    x = 9,401.51

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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.