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Finding the Fourth Proportional to 27.25, 37.62 and 19.48

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Solution

The fourth proportional to 27.25, 37.62 and 19.48 is: 26.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.25 : 37.62 = 19.48 : x
  2. Step 2: Convert to fraction form
    27.25/37.62 = 19.48/x
  3. Step 3: Cross multiply
    27.25x = 37.62 × 19.48
  4. Step 4: Simplify right side
    27.25x = 732.84
  5. Step 5: Solve for x
    x = 732.84/27.25
  6. Step 6: Final answer
    x = 26.89

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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.