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Finding the Fourth Proportional to 24.24, 33.50 and 19.86

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Solution

The fourth proportional to 24.24, 33.50 and 19.86 is: 27.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.24 : 33.50 = 19.86 : x
  2. Step 2: Convert to fraction form
    24.24/33.50 = 19.86/x
  3. Step 3: Cross multiply
    24.24x = 33.50 × 19.86
  4. Step 4: Simplify right side
    24.24x = 665.22
  5. Step 5: Solve for x
    x = 665.22/24.24
  6. Step 6: Final answer
    x = 27.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.