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Finding the Fourth Proportional to 40.06, 60.09 and 14.39

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Solution

The fourth proportional to 40.06, 60.09 and 14.39 is: 21.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40.06 : 60.09 = 14.39 : x
  2. Step 2: Convert to fraction form
    40.06/60.09 = 14.39/x
  3. Step 3: Cross multiply
    40.06x = 60.09 × 14.39
  4. Step 4: Simplify right side
    40.06x = 864.70
  5. Step 5: Solve for x
    x = 864.70/40.06
  6. Step 6: Final answer
    x = 21.59

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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.