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Finding the Fourth Proportional to 23,324.40, 34,986.60 and 20,408.40

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Solution

The fourth proportional to 23,324.40, 34,986.60 and 20,408.40 is: 30,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,324.40 : 34,986.60 = 20,408.40 : x
  2. Step 2: Convert to fraction form
    23,324.40/34,986.60 = 20,408.40/x
  3. Step 3: Cross multiply
    23,324.40x = 34,986.60 × 20,408.40
  4. Step 4: Simplify right side
    23,324.40x = 714,020,527.44
  5. Step 5: Solve for x
    x = 714,020,527.44/23,324.40
  6. Step 6: Final answer
    x = 30,612.60

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