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Finding the Fourth Proportional to 26.63, 36.73 and 17.42

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Solution

The fourth proportional to 26.63, 36.73 and 17.42 is: 24.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.63 : 36.73 = 17.42 : x
  2. Step 2: Convert to fraction form
    26.63/36.73 = 17.42/x
  3. Step 3: Cross multiply
    26.63x = 36.73 × 17.42
  4. Step 4: Simplify right side
    26.63x = 639.63
  5. Step 5: Solve for x
    x = 639.63/26.63
  6. Step 6: Final answer
    x = 24.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.