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Finding the Fourth Proportional to 34.01, 51.01 and 18.79

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Solution

The fourth proportional to 34.01, 51.01 and 18.79 is: 28.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.01 : 51.01 = 18.79 : x
  2. Step 2: Convert to fraction form
    34.01/51.01 = 18.79/x
  3. Step 3: Cross multiply
    34.01x = 51.01 × 18.79
  4. Step 4: Simplify right side
    34.01x = 958.48
  5. Step 5: Solve for x
    x = 958.48/34.01
  6. Step 6: Final answer
    x = 28.18

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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.