Home / 19,791.42-27,305.38-11,287.43

Finding the Fourth Proportional to 19,791.42, 27,305.38 and 11,287.43

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Solution

The fourth proportional to 19,791.42, 27,305.38 and 11,287.43 is: 15,572.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791.42 : 27,305.38 = 11,287.43 : x
  2. Step 2: Convert to fraction form
    19,791.42/27,305.38 = 11,287.43/x
  3. Step 3: Cross multiply
    19,791.42x = 27,305.38 × 11,287.43
  4. Step 4: Simplify right side
    19,791.42x = 308,207,436.81
  5. Step 5: Solve for x
    x = 308,207,436.81/19,791.42
  6. Step 6: Final answer
    x = 15,572.78

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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.