Home / 28,436.28-39,229.62-17,099.22

Finding the Fourth Proportional to 28,436.28, 39,229.62 and 17,099.22

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Solution

The fourth proportional to 28,436.28, 39,229.62 and 17,099.22 is: 23,589.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436.28 : 39,229.62 = 17,099.22 : x
  2. Step 2: Convert to fraction form
    28,436.28/39,229.62 = 17,099.22/x
  3. Step 3: Cross multiply
    28,436.28x = 39,229.62 × 17,099.22
  4. Step 4: Simplify right side
    28,436.28x = 670,795,902.90
  5. Step 5: Solve for x
    x = 670,795,902.90/28,436.28
  6. Step 6: Final answer
    x = 23,589.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.