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Finding the Fourth Proportional to 32.63, 48.74 and 26.85

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Solution

The fourth proportional to 32.63, 48.74 and 26.85 is: 40.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.63 : 48.74 = 26.85 : x
  2. Step 2: Convert to fraction form
    32.63/48.74 = 26.85/x
  3. Step 3: Cross multiply
    32.63x = 48.74 × 26.85
  4. Step 4: Simplify right side
    32.63x = 1,308.72
  5. Step 5: Solve for x
    x = 1,308.72/32.63
  6. Step 6: Final answer
    x = 40.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.