Home / 20,442.28-30,634.38-15,744.52

Finding the Fourth Proportional to 20,442.28, 30,634.38 and 15,744.52

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Solution

The fourth proportional to 20,442.28, 30,634.38 and 15,744.52 is: 23,594.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442.28 : 30,634.38 = 15,744.52 : x
  2. Step 2: Convert to fraction form
    20,442.28/30,634.38 = 15,744.52/x
  3. Step 3: Cross multiply
    20,442.28x = 30,634.38 × 15,744.52
  4. Step 4: Simplify right side
    20,442.28x = 482,323,608.60
  5. Step 5: Solve for x
    x = 482,323,608.60/20,442.28
  6. Step 6: Final answer
    x = 23,594.41

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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.