Home / 20,150.56-27,808.10-11,654.60

Finding the Fourth Proportional to 20,150.56, 27,808.10 and 11,654.60

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Solution

The fourth proportional to 20,150.56, 27,808.10 and 11,654.60 is: 16,083.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.56 : 27,808.10 = 11,654.60 : x
  2. Step 2: Convert to fraction form
    20,150.56/27,808.10 = 11,654.60/x
  3. Step 3: Cross multiply
    20,150.56x = 27,808.10 × 11,654.60
  4. Step 4: Simplify right side
    20,150.56x = 324,092,282.26
  5. Step 5: Solve for x
    x = 324,092,282.26/20,150.56
  6. Step 6: Final answer
    x = 16,083.54

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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.