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Finding the Fourth Proportional to 27.64, 38.32 and 26.12

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Solution

The fourth proportional to 27.64, 38.32 and 26.12 is: 36.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.64 : 38.32 = 26.12 : x
  2. Step 2: Convert to fraction form
    27.64/38.32 = 26.12/x
  3. Step 3: Cross multiply
    27.64x = 38.32 × 26.12
  4. Step 4: Simplify right side
    27.64x = 1,001.10
  5. Step 5: Solve for x
    x = 1,001.10/27.64
  6. Step 6: Final answer
    x = 36.22

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.