Home / 20,086.41-27,719.46-11,134.08

Finding the Fourth Proportional to 20,086.41, 27,719.46 and 11,134.08

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Solution

The fourth proportional to 20,086.41, 27,719.46 and 11,134.08 is: 15,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.41 : 27,719.46 = 11,134.08 : x
  2. Step 2: Convert to fraction form
    20,086.41/27,719.46 = 11,134.08/x
  3. Step 3: Cross multiply
    20,086.41x = 27,719.46 × 11,134.08
  4. Step 4: Simplify right side
    20,086.41x = 308,630,685.20
  5. Step 5: Solve for x
    x = 308,630,685.20/20,086.41
  6. Step 6: Final answer
    x = 15,365.15

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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.