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Finding the Fourth Proportional to 34.99, 48.30 and 22.73

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Solution

The fourth proportional to 34.99, 48.30 and 22.73 is: 31.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.99 : 48.30 = 22.73 : x
  2. Step 2: Convert to fraction form
    34.99/48.30 = 22.73/x
  3. Step 3: Cross multiply
    34.99x = 48.30 × 22.73
  4. Step 4: Simplify right side
    34.99x = 1,097.86
  5. Step 5: Solve for x
    x = 1,097.86/34.99
  6. Step 6: Final answer
    x = 31.38

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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.