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Finding the Fourth Proportional to 23.26, 34.85 and 18.98

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Solution

The fourth proportional to 23.26, 34.85 and 18.98 is: 28.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.26 : 34.85 = 18.98 : x
  2. Step 2: Convert to fraction form
    23.26/34.85 = 18.98/x
  3. Step 3: Cross multiply
    23.26x = 34.85 × 18.98
  4. Step 4: Simplify right side
    23.26x = 661.45
  5. Step 5: Solve for x
    x = 661.45/23.26
  6. Step 6: Final answer
    x = 28.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.