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Finding the Fourth Proportional to 26.96, 40.24 and 25.18

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Solution

The fourth proportional to 26.96, 40.24 and 25.18 is: 37.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.96 : 40.24 = 25.18 : x
  2. Step 2: Convert to fraction form
    26.96/40.24 = 25.18/x
  3. Step 3: Cross multiply
    26.96x = 40.24 × 25.18
  4. Step 4: Simplify right side
    26.96x = 1,013.31
  5. Step 5: Solve for x
    x = 1,013.31/26.96
  6. Step 6: Final answer
    x = 37.59

Related Problems

Find fourth proportional to 13.48, 20.12 and 12.59
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1.5x scale

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.