Home / 21,374.72-32,063.69-6,380.66

Finding the Fourth Proportional to 21,374.72, 32,063.69 and 6,380.66

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Solution

The fourth proportional to 21,374.72, 32,063.69 and 6,380.66 is: 9,571.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,374.72 : 32,063.69 = 6,380.66 : x
  2. Step 2: Convert to fraction form
    21,374.72/32,063.69 = 6,380.66/x
  3. Step 3: Cross multiply
    21,374.72x = 32,063.69 × 6,380.66
  4. Step 4: Simplify right side
    21,374.72x = 204,587,351.89
  5. Step 5: Solve for x
    x = 204,587,351.89/21,374.72
  6. Step 6: Final answer
    x = 9,571.46

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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.