Home / 20,086.42-27,719.28-11,134.06

Finding the Fourth Proportional to 20,086.42, 27,719.28 and 11,134.06

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Solution

The fourth proportional to 20,086.42, 27,719.28 and 11,134.06 is: 15,365.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.42 : 27,719.28 = 11,134.06 : x
  2. Step 2: Convert to fraction form
    20,086.42/27,719.28 = 11,134.06/x
  3. Step 3: Cross multiply
    20,086.42x = 27,719.28 × 11,134.06
  4. Step 4: Simplify right side
    20,086.42x = 308,628,126.68
  5. Step 5: Solve for x
    x = 308,628,126.68/20,086.42
  6. Step 6: Final answer
    x = 15,365.01

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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.