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Finding the Fourth Proportional to 26.47, 36.31 and 23.81

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Solution

The fourth proportional to 26.47, 36.31 and 23.81 is: 32.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.47 : 36.31 = 23.81 : x
  2. Step 2: Convert to fraction form
    26.47/36.31 = 23.81/x
  3. Step 3: Cross multiply
    26.47x = 36.31 × 23.81
  4. Step 4: Simplify right side
    26.47x = 864.54
  5. Step 5: Solve for x
    x = 864.54/26.47
  6. Step 6: Final answer
    x = 32.67

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.