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Finding the Fourth Proportional to 26,425.92, 39,601.92 and 12,370.80

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Solution

The fourth proportional to 26,425.92, 39,601.92 and 12,370.80 is: 18,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,425.92 : 39,601.92 = 12,370.80 : x
  2. Step 2: Convert to fraction form
    26,425.92/39,601.92 = 12,370.80/x
  3. Step 3: Cross multiply
    26,425.92x = 39,601.92 × 12,370.80
  4. Step 4: Simplify right side
    26,425.92x = 489,907,431.94
  5. Step 5: Solve for x
    x = 489,907,431.94/26,425.92
  6. Step 6: Final answer
    x = 18,538.90

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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.