Home / 20,086.34-27,719.07-11,133.75

Finding the Fourth Proportional to 20,086.34, 27,719.07 and 11,133.75

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Solution

The fourth proportional to 20,086.34, 27,719.07 and 11,133.75 is: 15,364.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.34 : 27,719.07 = 11,133.75 : x
  2. Step 2: Convert to fraction form
    20,086.34/27,719.07 = 11,133.75/x
  3. Step 3: Cross multiply
    20,086.34x = 27,719.07 × 11,133.75
  4. Step 4: Simplify right side
    20,086.34x = 308,617,195.61
  5. Step 5: Solve for x
    x = 308,617,195.61/20,086.34
  6. Step 6: Final answer
    x = 15,364.53

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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.