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Finding the Fourth Proportional to 24.89, 37.36 and 21.70

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Solution

The fourth proportional to 24.89, 37.36 and 21.70 is: 32.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.89 : 37.36 = 21.70 : x
  2. Step 2: Convert to fraction form
    24.89/37.36 = 21.70/x
  3. Step 3: Cross multiply
    24.89x = 37.36 × 21.70
  4. Step 4: Simplify right side
    24.89x = 810.71
  5. Step 5: Solve for x
    x = 810.71/24.89
  6. Step 6: Final answer
    x = 32.57

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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.