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Finding the Fourth Proportional to 27.10, 40.87 and 23.90

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Solution

The fourth proportional to 27.10, 40.87 and 23.90 is: 36.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.10 : 40.87 = 23.90 : x
  2. Step 2: Convert to fraction form
    27.10/40.87 = 23.90/x
  3. Step 3: Cross multiply
    27.10x = 40.87 × 23.90
  4. Step 4: Simplify right side
    27.10x = 976.67
  5. Step 5: Solve for x
    x = 976.67/27.10
  6. Step 6: Final answer
    x = 36.04

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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.