Home / 21,083.44-31,621.96-7,932.74

Finding the Fourth Proportional to 21,083.44, 31,621.96 and 7,932.74

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Solution

The fourth proportional to 21,083.44, 31,621.96 and 7,932.74 is: 11,897.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.44 : 31,621.96 = 7,932.74 : x
  2. Step 2: Convert to fraction form
    21,083.44/31,621.96 = 7,932.74/x
  3. Step 3: Cross multiply
    21,083.44x = 31,621.96 × 7,932.74
  4. Step 4: Simplify right side
    21,083.44x = 250,848,786.97
  5. Step 5: Solve for x
    x = 250,848,786.97/21,083.44
  6. Step 6: Final answer
    x = 11,897.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.