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Finding the Fourth Proportional to 26.21, 36.42 and 25.93

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Solution

The fourth proportional to 26.21, 36.42 and 25.93 is: 36.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.21 : 36.42 = 25.93 : x
  2. Step 2: Convert to fraction form
    26.21/36.42 = 25.93/x
  3. Step 3: Cross multiply
    26.21x = 36.42 × 25.93
  4. Step 4: Simplify right side
    26.21x = 944.23
  5. Step 5: Solve for x
    x = 944.23/26.21
  6. Step 6: Final answer
    x = 36.03

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.