Home / 19,786.96-27,294.60-12,322

Finding the Fourth Proportional to 19,786.96, 27,294.60 and 12,322

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Solution

The fourth proportional to 19,786.96, 27,294.60 and 12,322 is: 16,997.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.96 : 27,294.60 = 12,322 : x
  2. Step 2: Convert to fraction form
    19,786.96/27,294.60 = 12,322/x
  3. Step 3: Cross multiply
    19,786.96x = 27,294.60 × 12,322
  4. Step 4: Simplify right side
    19,786.96x = 336,324,061.20
  5. Step 5: Solve for x
    x = 336,324,061.20/19,786.96
  6. Step 6: Final answer
    x = 16,997.26

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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.