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Finding the Fourth Proportional to 22.88, 34.32 and 14.87

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Solution

The fourth proportional to 22.88, 34.32 and 14.87 is: 22.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.88 : 34.32 = 14.87 : x
  2. Step 2: Convert to fraction form
    22.88/34.32 = 14.87/x
  3. Step 3: Cross multiply
    22.88x = 34.32 × 14.87
  4. Step 4: Simplify right side
    22.88x = 510.34
  5. Step 5: Solve for x
    x = 510.34/22.88
  6. Step 6: Final answer
    x = 22.31

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Why These Related Problems?

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