Home / 20,166.18-27,825.23-11,781.06

Finding the Fourth Proportional to 20,166.18, 27,825.23 and 11,781.06

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Solution

The fourth proportional to 20,166.18, 27,825.23 and 11,781.06 is: 16,255.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.18 : 27,825.23 = 11,781.06 : x
  2. Step 2: Convert to fraction form
    20,166.18/27,825.23 = 11,781.06/x
  3. Step 3: Cross multiply
    20,166.18x = 27,825.23 × 11,781.06
  4. Step 4: Simplify right side
    20,166.18x = 327,810,704.14
  5. Step 5: Solve for x
    x = 327,810,704.14/20,166.18
  6. Step 6: Final answer
    x = 16,255.47

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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.