Home / 30,072.87-41,505.62-18,137.12

Finding the Fourth Proportional to 30,072.87, 41,505.62 and 18,137.12

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Solution

The fourth proportional to 30,072.87, 41,505.62 and 18,137.12 is: 25,032.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,072.87 : 41,505.62 = 18,137.12 : x
  2. Step 2: Convert to fraction form
    30,072.87/41,505.62 = 18,137.12/x
  3. Step 3: Cross multiply
    30,072.87x = 41,505.62 × 18,137.12
  4. Step 4: Simplify right side
    30,072.87x = 752,792,112.40
  5. Step 5: Solve for x
    x = 752,792,112.40/30,072.87
  6. Step 6: Final answer
    x = 25,032.27

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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.