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Finding the Fourth Proportional to 27.52, 37.94 and 18.88

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Solution

The fourth proportional to 27.52, 37.94 and 18.88 is: 26.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.52 : 37.94 = 18.88 : x
  2. Step 2: Convert to fraction form
    27.52/37.94 = 18.88/x
  3. Step 3: Cross multiply
    27.52x = 37.94 × 18.88
  4. Step 4: Simplify right side
    27.52x = 716.31
  5. Step 5: Solve for x
    x = 716.31/27.52
  6. Step 6: Final answer
    x = 26.03

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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.