Home / 19,832.72-27,371.60-11,449.28

Finding the Fourth Proportional to 19,832.72, 27,371.60 and 11,449.28

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Solution

The fourth proportional to 19,832.72, 27,371.60 and 11,449.28 is: 15,801.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,832.72 : 27,371.60 = 11,449.28 : x
  2. Step 2: Convert to fraction form
    19,832.72/27,371.60 = 11,449.28/x
  3. Step 3: Cross multiply
    19,832.72x = 27,371.60 × 11,449.28
  4. Step 4: Simplify right side
    19,832.72x = 313,385,112.45
  5. Step 5: Solve for x
    x = 313,385,112.45/19,832.72
  6. Step 6: Final answer
    x = 15,801.42

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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.