Home / 21,349.85-29,464.41-11,791.56

Finding the Fourth Proportional to 21,349.85, 29,464.41 and 11,791.56

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Solution

The fourth proportional to 21,349.85, 29,464.41 and 11,791.56 is: 16,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,349.85 : 29,464.41 = 11,791.56 : x
  2. Step 2: Convert to fraction form
    21,349.85/29,464.41 = 11,791.56/x
  3. Step 3: Cross multiply
    21,349.85x = 29,464.41 × 11,791.56
  4. Step 4: Simplify right side
    21,349.85x = 347,431,358.38
  5. Step 5: Solve for x
    x = 347,431,358.38/21,349.85
  6. Step 6: Final answer
    x = 16,273.25

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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.