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Finding the Fourth Proportional to 27,694.58, 38,218.26 and 15,119.34

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Solution

The fourth proportional to 27,694.58, 38,218.26 and 15,119.34 is: 20,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,694.58 : 38,218.26 = 15,119.34 : x
  2. Step 2: Convert to fraction form
    27,694.58/38,218.26 = 15,119.34/x
  3. Step 3: Cross multiply
    27,694.58x = 38,218.26 × 15,119.34
  4. Step 4: Simplify right side
    27,694.58x = 577,834,867.15
  5. Step 5: Solve for x
    x = 577,834,867.15/27,694.58
  6. Step 6: Final answer
    x = 20,864.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.