Home / 21,551.20-32,326.81-6,761.28

Finding the Fourth Proportional to 21,551.20, 32,326.81 and 6,761.28

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Solution

The fourth proportional to 21,551.20, 32,326.81 and 6,761.28 is: 10,141.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.20 : 32,326.81 = 6,761.28 : x
  2. Step 2: Convert to fraction form
    21,551.20/32,326.81 = 6,761.28/x
  3. Step 3: Cross multiply
    21,551.20x = 32,326.81 × 6,761.28
  4. Step 4: Simplify right side
    21,551.20x = 218,570,613.92
  5. Step 5: Solve for x
    x = 218,570,613.92/21,551.20
  6. Step 6: Final answer
    x = 10,141.92

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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.