Home / 20,441.28-30,632.88-15,743.52

Finding the Fourth Proportional to 20,441.28, 30,632.88 and 15,743.52

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Solution

The fourth proportional to 20,441.28, 30,632.88 and 15,743.52 is: 23,592.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.28 : 30,632.88 = 15,743.52 : x
  2. Step 2: Convert to fraction form
    20,441.28/30,632.88 = 15,743.52/x
  3. Step 3: Cross multiply
    20,441.28x = 30,632.88 × 15,743.52
  4. Step 4: Simplify right side
    20,441.28x = 482,269,358.94
  5. Step 5: Solve for x
    x = 482,269,358.94/20,441.28
  6. Step 6: Final answer
    x = 23,592.91

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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.