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Finding the Fourth Proportional to 40.34, 55.68 and 23.98

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Solution

The fourth proportional to 40.34, 55.68 and 23.98 is: 33.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40.34 : 55.68 = 23.98 : x
  2. Step 2: Convert to fraction form
    40.34/55.68 = 23.98/x
  3. Step 3: Cross multiply
    40.34x = 55.68 × 23.98
  4. Step 4: Simplify right side
    40.34x = 1,335.21
  5. Step 5: Solve for x
    x = 1,335.21/40.34
  6. Step 6: Final answer
    x = 33.10

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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.