Home / 17,181.97-25,729.20-11,320.81

Finding the Fourth Proportional to 17,181.97, 25,729.20 and 11,320.81

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Solution

The fourth proportional to 17,181.97, 25,729.20 and 11,320.81 is: 16,952.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,181.97 : 25,729.20 = 11,320.81 : x
  2. Step 2: Convert to fraction form
    17,181.97/25,729.20 = 11,320.81/x
  3. Step 3: Cross multiply
    17,181.97x = 25,729.20 × 11,320.81
  4. Step 4: Simplify right side
    17,181.97x = 291,275,320.33
  5. Step 5: Solve for x
    x = 291,275,320.33/17,181.97
  6. Step 6: Final answer
    x = 16,952.38

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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.