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Finding the Fourth Proportional to 29.10, 43.38 and 27.06

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Solution

The fourth proportional to 29.10, 43.38 and 27.06 is: 40.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.10 : 43.38 = 27.06 : x
  2. Step 2: Convert to fraction form
    29.10/43.38 = 27.06/x
  3. Step 3: Cross multiply
    29.10x = 43.38 × 27.06
  4. Step 4: Simplify right side
    29.10x = 1,173.86
  5. Step 5: Solve for x
    x = 1,173.86/29.10
  6. Step 6: Final answer
    x = 40.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.