Home / 21,351.35-29,464.31-11,791.94

Finding the Fourth Proportional to 21,351.35, 29,464.31 and 11,791.94

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Solution

The fourth proportional to 21,351.35, 29,464.31 and 11,791.94 is: 16,272.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,351.35 : 29,464.31 = 11,791.94 : x
  2. Step 2: Convert to fraction form
    21,351.35/29,464.31 = 11,791.94/x
  3. Step 3: Cross multiply
    21,351.35x = 29,464.31 × 11,791.94
  4. Step 4: Simplify right side
    21,351.35x = 347,441,169.38
  5. Step 5: Solve for x
    x = 347,441,169.38/21,351.35
  6. Step 6: Final answer
    x = 16,272.57

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1.5x scale

Why These Related Problems?

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