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Finding the Fourth Proportional to 18.01, 27.16 and 17.07

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Solution

The fourth proportional to 18.01, 27.16 and 17.07 is: 25.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.01 : 27.16 = 17.07 : x
  2. Step 2: Convert to fraction form
    18.01/27.16 = 17.07/x
  3. Step 3: Cross multiply
    18.01x = 27.16 × 17.07
  4. Step 4: Simplify right side
    18.01x = 463.62
  5. Step 5: Solve for x
    x = 463.62/18.01
  6. Step 6: Final answer
    x = 25.74

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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.