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Finding the Fourth Proportional to 43.20, 59.62 and 24.79

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Solution

The fourth proportional to 43.20, 59.62 and 24.79 is: 34.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.20 : 59.62 = 24.79 : x
  2. Step 2: Convert to fraction form
    43.20/59.62 = 24.79/x
  3. Step 3: Cross multiply
    43.20x = 59.62 × 24.79
  4. Step 4: Simplify right side
    43.20x = 1,477.93
  5. Step 5: Solve for x
    x = 1,477.93/43.20
  6. Step 6: Final answer
    x = 34.21

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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.