Home / 21,551.25-32,326.80-6,761.28

Finding the Fourth Proportional to 21,551.25, 32,326.80 and 6,761.28

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Solution

The fourth proportional to 21,551.25, 32,326.80 and 6,761.28 is: 10,141.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.25 : 32,326.80 = 6,761.28 : x
  2. Step 2: Convert to fraction form
    21,551.25/32,326.80 = 6,761.28/x
  3. Step 3: Cross multiply
    21,551.25x = 32,326.80 × 6,761.28
  4. Step 4: Simplify right side
    21,551.25x = 218,570,546.30
  5. Step 5: Solve for x
    x = 218,570,546.30/21,551.25
  6. Step 6: Final answer
    x = 10,141.90

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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.