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Finding the Fourth Proportional to 19.10, 26.26 and 17.75

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Solution

The fourth proportional to 19.10, 26.26 and 17.75 is: 24.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.10 : 26.26 = 17.75 : x
  2. Step 2: Convert to fraction form
    19.10/26.26 = 17.75/x
  3. Step 3: Cross multiply
    19.10x = 26.26 × 17.75
  4. Step 4: Simplify right side
    19.10x = 466.14
  5. Step 5: Solve for x
    x = 466.14/19.10
  6. Step 6: Final answer
    x = 24.40

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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.