Home / 19,680.43-27,157.63-11,067.90

Finding the Fourth Proportional to 19,680.43, 27,157.63 and 11,067.90

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Solution

The fourth proportional to 19,680.43, 27,157.63 and 11,067.90 is: 15,272.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.43 : 27,157.63 = 11,067.90 : x
  2. Step 2: Convert to fraction form
    19,680.43/27,157.63 = 11,067.90/x
  3. Step 3: Cross multiply
    19,680.43x = 27,157.63 × 11,067.90
  4. Step 4: Simplify right side
    19,680.43x = 300,577,916.74
  5. Step 5: Solve for x
    x = 300,577,916.74/19,680.43
  6. Step 6: Final answer
    x = 15,272.94

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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.