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Finding the Fourth Proportional to 42.45, 58.59 and 24.97

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Solution

The fourth proportional to 42.45, 58.59 and 24.97 is: 34.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42.45 : 58.59 = 24.97 : x
  2. Step 2: Convert to fraction form
    42.45/58.59 = 24.97/x
  3. Step 3: Cross multiply
    42.45x = 58.59 × 24.97
  4. Step 4: Simplify right side
    42.45x = 1,462.75
  5. Step 5: Solve for x
    x = 1,462.75/42.45
  6. Step 6: Final answer
    x = 34.46

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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.