Home / 20,794.61-31,183.60-12,035.67

Finding the Fourth Proportional to 20,794.61, 31,183.60 and 12,035.67

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Solution

The fourth proportional to 20,794.61, 31,183.60 and 12,035.67 is: 18,048.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.61 : 31,183.60 = 12,035.67 : x
  2. Step 2: Convert to fraction form
    20,794.61/31,183.60 = 12,035.67/x
  3. Step 3: Cross multiply
    20,794.61x = 31,183.60 × 12,035.67
  4. Step 4: Simplify right side
    20,794.61x = 375,315,519.01
  5. Step 5: Solve for x
    x = 375,315,519.01/20,794.61
  6. Step 6: Final answer
    x = 18,048.69

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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.