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Finding the Fourth Proportional to 26,620, 39,930 and 8,152

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Solution

The fourth proportional to 26,620, 39,930 and 8,152 is: 12,228

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,620 : 39,930 = 8,152 : x
  2. Step 2: Convert to fraction form
    26,620/39,930 = 8,152/x
  3. Step 3: Cross multiply
    26,620x = 39,930 × 8,152
  4. Step 4: Simplify right side
    26,620x = 325,509,360
  5. Step 5: Solve for x
    x = 325,509,360/26,620
  6. Step 6: Final answer
    x = 12,228

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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.