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Finding the Fourth Proportional to 27.29, 41.22 and 26.28

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Solution

The fourth proportional to 27.29, 41.22 and 26.28 is: 39.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.29 : 41.22 = 26.28 : x
  2. Step 2: Convert to fraction form
    27.29/41.22 = 26.28/x
  3. Step 3: Cross multiply
    27.29x = 41.22 × 26.28
  4. Step 4: Simplify right side
    27.29x = 1,083.26
  5. Step 5: Solve for x
    x = 1,083.26/27.29
  6. Step 6: Final answer
    x = 39.70

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.