Home / 20,388.06-30,584.92-7,237.30

Finding the Fourth Proportional to 20,388.06, 30,584.92 and 7,237.30

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Solution

The fourth proportional to 20,388.06, 30,584.92 and 7,237.30 is: 10,856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388.06 : 30,584.92 = 7,237.30 : x
  2. Step 2: Convert to fraction form
    20,388.06/30,584.92 = 7,237.30/x
  3. Step 3: Cross multiply
    20,388.06x = 30,584.92 × 7,237.30
  4. Step 4: Simplify right side
    20,388.06x = 221,352,241.52
  5. Step 5: Solve for x
    x = 221,352,241.52/20,388.06
  6. Step 6: Final answer
    x = 10,856.95

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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.