Home / 20,161.18-27,821.81-11,086.52

Finding the Fourth Proportional to 20,161.18, 27,821.81 and 11,086.52

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Solution

The fourth proportional to 20,161.18, 27,821.81 and 11,086.52 is: 15,299.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.18 : 27,821.81 = 11,086.52 : x
  2. Step 2: Convert to fraction form
    20,161.18/27,821.81 = 11,086.52/x
  3. Step 3: Cross multiply
    20,161.18x = 27,821.81 × 11,086.52
  4. Step 4: Simplify right side
    20,161.18x = 308,446,997.57
  5. Step 5: Solve for x
    x = 308,446,997.57/20,161.18
  6. Step 6: Final answer
    x = 15,299.06

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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.