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Finding the Fourth Proportional to 26.67, 40.21 and 23.33

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Solution

The fourth proportional to 26.67, 40.21 and 23.33 is: 35.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.67 : 40.21 = 23.33 : x
  2. Step 2: Convert to fraction form
    26.67/40.21 = 23.33/x
  3. Step 3: Cross multiply
    26.67x = 40.21 × 23.33
  4. Step 4: Simplify right side
    26.67x = 938.10
  5. Step 5: Solve for x
    x = 938.10/26.67
  6. Step 6: Final answer
    x = 35.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.