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Finding the Fourth Proportional to 21,226.68, 29,290.86 and 11,794.68

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Solution

The fourth proportional to 21,226.68, 29,290.86 and 11,794.68 is: 16,275.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,226.68 : 29,290.86 = 11,794.68 : x
  2. Step 2: Convert to fraction form
    21,226.68/29,290.86 = 11,794.68/x
  3. Step 3: Cross multiply
    21,226.68x = 29,290.86 × 11,794.68
  4. Step 4: Simplify right side
    21,226.68x = 345,476,320.62
  5. Step 5: Solve for x
    x = 345,476,320.62/21,226.68
  6. Step 6: Final answer
    x = 16,275.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.