Home / 20,205.94-30,289.46-10,349.86

Finding the Fourth Proportional to 20,205.94, 30,289.46 and 10,349.86

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Solution

The fourth proportional to 20,205.94, 30,289.46 and 10,349.86 is: 15,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.94 : 30,289.46 = 10,349.86 : x
  2. Step 2: Convert to fraction form
    20,205.94/30,289.46 = 10,349.86/x
  3. Step 3: Cross multiply
    20,205.94x = 30,289.46 × 10,349.86
  4. Step 4: Simplify right side
    20,205.94x = 313,491,544.90
  5. Step 5: Solve for x
    x = 313,491,544.90/20,205.94
  6. Step 6: Final answer
    x = 15,514.82

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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.