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Finding the Fourth Proportional to 22.99, 34.45 and 15.38

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Solution

The fourth proportional to 22.99, 34.45 and 15.38 is: 23.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.99 : 34.45 = 15.38 : x
  2. Step 2: Convert to fraction form
    22.99/34.45 = 15.38/x
  3. Step 3: Cross multiply
    22.99x = 34.45 × 15.38
  4. Step 4: Simplify right side
    22.99x = 529.84
  5. Step 5: Solve for x
    x = 529.84/22.99
  6. Step 6: Final answer
    x = 23.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.