Home / 21,984.26-32,882.15-20,388.84

Finding the Fourth Proportional to 21,984.26, 32,882.15 and 20,388.84

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Solution

The fourth proportional to 21,984.26, 32,882.15 and 20,388.84 is: 30,495.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,984.26 : 32,882.15 = 20,388.84 : x
  2. Step 2: Convert to fraction form
    21,984.26/32,882.15 = 20,388.84/x
  3. Step 3: Cross multiply
    21,984.26x = 32,882.15 × 20,388.84
  4. Step 4: Simplify right side
    21,984.26x = 670,428,793.26
  5. Step 5: Solve for x
    x = 670,428,793.26/21,984.26
  6. Step 6: Final answer
    x = 30,495.86

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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.