Home / 20,086.40-27,719.44-11,134.08

Finding the Fourth Proportional to 20,086.40, 27,719.44 and 11,134.08

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Solution

The fourth proportional to 20,086.40, 27,719.44 and 11,134.08 is: 15,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.40 : 27,719.44 = 11,134.08 : x
  2. Step 2: Convert to fraction form
    20,086.40/27,719.44 = 11,134.08/x
  3. Step 3: Cross multiply
    20,086.40x = 27,719.44 × 11,134.08
  4. Step 4: Simplify right side
    20,086.40x = 308,630,462.52
  5. Step 5: Solve for x
    x = 308,630,462.52/20,086.40
  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.