Home / 20,183.78-27,843.18-11,795.42

Finding the Fourth Proportional to 20,183.78, 27,843.18 and 11,795.42

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Solution

The fourth proportional to 20,183.78, 27,843.18 and 11,795.42 is: 16,271.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.78 : 27,843.18 = 11,795.42 : x
  2. Step 2: Convert to fraction form
    20,183.78/27,843.18 = 11,795.42/x
  3. Step 3: Cross multiply
    20,183.78x = 27,843.18 × 11,795.42
  4. Step 4: Simplify right side
    20,183.78x = 328,422,002.24
  5. Step 5: Solve for x
    x = 328,422,002.24/20,183.78
  6. Step 6: Final answer
    x = 16,271.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.