Home / 18,235.82-25,172.68-15,673.43

Finding the Fourth Proportional to 18,235.82, 25,172.68 and 15,673.43

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Solution

The fourth proportional to 18,235.82, 25,172.68 and 15,673.43 is: 21,635.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.82 : 25,172.68 = 15,673.43 : x
  2. Step 2: Convert to fraction form
    18,235.82/25,172.68 = 15,673.43/x
  3. Step 3: Cross multiply
    18,235.82x = 25,172.68 × 15,673.43
  4. Step 4: Simplify right side
    18,235.82x = 394,542,270.55
  5. Step 5: Solve for x
    x = 394,542,270.55/18,235.82
  6. Step 6: Final answer
    x = 21,635.57

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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.