Home / 20,230.62-30,349.57-6,190.39

Finding the Fourth Proportional to 20,230.62, 30,349.57 and 6,190.39

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Solution

The fourth proportional to 20,230.62, 30,349.57 and 6,190.39 is: 9,286.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.62 : 30,349.57 = 6,190.39 : x
  2. Step 2: Convert to fraction form
    20,230.62/30,349.57 = 6,190.39/x
  3. Step 3: Cross multiply
    20,230.62x = 30,349.57 × 6,190.39
  4. Step 4: Simplify right side
    20,230.62x = 187,875,522.88
  5. Step 5: Solve for x
    x = 187,875,522.88/20,230.62
  6. Step 6: Final answer
    x = 9,286.69

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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.