Home / 21,442.28-32,161.80-5,861.12

Finding the Fourth Proportional to 21,442.28, 32,161.80 and 5,861.12

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Solution

The fourth proportional to 21,442.28, 32,161.80 and 5,861.12 is: 8,791.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,442.28 : 32,161.80 = 5,861.12 : x
  2. Step 2: Convert to fraction form
    21,442.28/32,161.80 = 5,861.12/x
  3. Step 3: Cross multiply
    21,442.28x = 32,161.80 × 5,861.12
  4. Step 4: Simplify right side
    21,442.28x = 188,504,169.22
  5. Step 5: Solve for x
    x = 188,504,169.22/21,442.28
  6. Step 6: Final answer
    x = 8,791.24

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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.