Home / 20,166.16-27,825.21-11,781.04

Finding the Fourth Proportional to 20,166.16, 27,825.21 and 11,781.04

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Solution

The fourth proportional to 20,166.16, 27,825.21 and 11,781.04 is: 16,255.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.16 : 27,825.21 = 11,781.04 : x
  2. Step 2: Convert to fraction form
    20,166.16/27,825.21 = 11,781.04/x
  3. Step 3: Cross multiply
    20,166.16x = 27,825.21 × 11,781.04
  4. Step 4: Simplify right side
    20,166.16x = 327,809,912.02
  5. Step 5: Solve for x
    x = 327,809,912.02/20,166.16
  6. Step 6: Final answer
    x = 16,255.45

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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.