Home / 21,470.67-32,205.90-6,679.56

Finding the Fourth Proportional to 21,470.67, 32,205.90 and 6,679.56

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Solution

The fourth proportional to 21,470.67, 32,205.90 and 6,679.56 is: 10,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,470.67 : 32,205.90 = 6,679.56 : x
  2. Step 2: Convert to fraction form
    21,470.67/32,205.90 = 6,679.56/x
  3. Step 3: Cross multiply
    21,470.67x = 32,205.90 × 6,679.56
  4. Step 4: Simplify right side
    21,470.67x = 215,121,387.22
  5. Step 5: Solve for x
    x = 215,121,387.22/21,470.67
  6. Step 6: Final answer
    x = 10,019.31

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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.