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Finding the Fourth Proportional to 43.24, 59.74 and 30.36

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Solution

The fourth proportional to 43.24, 59.74 and 30.36 is: 41.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.24 : 59.74 = 30.36 : x
  2. Step 2: Convert to fraction form
    43.24/59.74 = 30.36/x
  3. Step 3: Cross multiply
    43.24x = 59.74 × 30.36
  4. Step 4: Simplify right side
    43.24x = 1,813.71
  5. Step 5: Solve for x
    x = 1,813.71/43.24
  6. Step 6: Final answer
    x = 41.95

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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.