Home / 20,771.57-31,161.85-6,732.99

Finding the Fourth Proportional to 20,771.57, 31,161.85 and 6,732.99

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Solution

The fourth proportional to 20,771.57, 31,161.85 and 6,732.99 is: 10,100.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771.57 : 31,161.85 = 6,732.99 : x
  2. Step 2: Convert to fraction form
    20,771.57/31,161.85 = 6,732.99/x
  3. Step 3: Cross multiply
    20,771.57x = 31,161.85 × 6,732.99
  4. Step 4: Simplify right side
    20,771.57x = 209,812,407.60
  5. Step 5: Solve for x
    x = 209,812,407.60/20,771.57
  6. Step 6: Final answer
    x = 10,100.94

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.