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Finding the Fourth Proportional to 19.68, 26.99 and 19.01

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Solution

The fourth proportional to 19.68, 26.99 and 19.01 is: 26.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.68 : 26.99 = 19.01 : x
  2. Step 2: Convert to fraction form
    19.68/26.99 = 19.01/x
  3. Step 3: Cross multiply
    19.68x = 26.99 × 19.01
  4. Step 4: Simplify right side
    19.68x = 512.85
  5. Step 5: Solve for x
    x = 512.85/19.68
  6. Step 6: Final answer
    x = 26.06

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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.