Home / 28,662.57-42,993.44-20,194.07

Finding the Fourth Proportional to 28,662.57, 42,993.44 and 20,194.07

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Solution

The fourth proportional to 28,662.57, 42,993.44 and 20,194.07 is: 30,290.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662.57 : 42,993.44 = 20,194.07 : x
  2. Step 2: Convert to fraction form
    28,662.57/42,993.44 = 20,194.07/x
  3. Step 3: Cross multiply
    28,662.57x = 42,993.44 × 20,194.07
  4. Step 4: Simplify right side
    28,662.57x = 868,212,536.90
  5. Step 5: Solve for x
    x = 868,212,536.90/28,662.57
  6. Step 6: Final answer
    x = 30,290.81

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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.