Home / 21,861.92-32,790.96-11,331.44

Finding the Fourth Proportional to 21,861.92, 32,790.96 and 11,331.44

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Solution

The fourth proportional to 21,861.92, 32,790.96 and 11,331.44 is: 16,996.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,861.92 : 32,790.96 = 11,331.44 : x
  2. Step 2: Convert to fraction form
    21,861.92/32,790.96 = 11,331.44/x
  3. Step 3: Cross multiply
    21,861.92x = 32,790.96 × 11,331.44
  4. Step 4: Simplify right side
    21,861.92x = 371,568,795.78
  5. Step 5: Solve for x
    x = 371,568,795.78/21,861.92
  6. Step 6: Final answer
    x = 16,996.16

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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.