Home / 20,086.72-27,719.36-11,134.24

Finding the Fourth Proportional to 20,086.72, 27,719.36 and 11,134.24

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Solution

The fourth proportional to 20,086.72, 27,719.36 and 11,134.24 is: 15,365.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.72 : 27,719.36 = 11,134.24 : x
  2. Step 2: Convert to fraction form
    20,086.72/27,719.36 = 11,134.24/x
  3. Step 3: Cross multiply
    20,086.72x = 27,719.36 × 11,134.24
  4. Step 4: Simplify right side
    20,086.72x = 308,634,006.89
  5. Step 5: Solve for x
    x = 308,634,006.89/20,086.72
  6. Step 6: Final answer
    x = 15,365.08

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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.