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Finding the Fourth Proportional to 20,491.67, 30,741.41 and 8,010.92

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Solution

The fourth proportional to 20,491.67, 30,741.41 and 8,010.92 is: 12,017.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,491.67 : 30,741.41 = 8,010.92 : x
  2. Step 2: Convert to fraction form
    20,491.67/30,741.41 = 8,010.92/x
  3. Step 3: Cross multiply
    20,491.67x = 30,741.41 × 8,010.92
  4. Step 4: Simplify right side
    20,491.67x = 246,267,073.08
  5. Step 5: Solve for x
    x = 246,267,073.08/20,491.67
  6. Step 6: Final answer
    x = 12,017.91

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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.