Home / 20,190.94-30,291.21-6,339.94

Finding the Fourth Proportional to 20,190.94, 30,291.21 and 6,339.94

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Solution

The fourth proportional to 20,190.94, 30,291.21 and 6,339.94 is: 9,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.94 : 30,291.21 = 6,339.94 : x
  2. Step 2: Convert to fraction form
    20,190.94/30,291.21 = 6,339.94/x
  3. Step 3: Cross multiply
    20,190.94x = 30,291.21 × 6,339.94
  4. Step 4: Simplify right side
    20,190.94x = 192,044,453.93
  5. Step 5: Solve for x
    x = 192,044,453.93/20,190.94
  6. Step 6: Final answer
    x = 9,511.42

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1.5x scale

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.