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Finding the Fourth Proportional to 24.87, 37.24 and 21.02

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Solution

The fourth proportional to 24.87, 37.24 and 21.02 is: 31.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.87 : 37.24 = 21.02 : x
  2. Step 2: Convert to fraction form
    24.87/37.24 = 21.02/x
  3. Step 3: Cross multiply
    24.87x = 37.24 × 21.02
  4. Step 4: Simplify right side
    24.87x = 782.78
  5. Step 5: Solve for x
    x = 782.78/24.87
  6. Step 6: Final answer
    x = 31.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.