Home / 40,135.87-55,389.04-22,230.49

Finding the Fourth Proportional to 40,135.87, 55,389.04 and 22,230.49

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Solution

The fourth proportional to 40,135.87, 55,389.04 and 22,230.49 is: 30,678.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,135.87 : 55,389.04 = 22,230.49 : x
  2. Step 2: Convert to fraction form
    40,135.87/55,389.04 = 22,230.49/x
  3. Step 3: Cross multiply
    40,135.87x = 55,389.04 × 22,230.49
  4. Step 4: Simplify right side
    40,135.87x = 1,231,325,388.68
  5. Step 5: Solve for x
    x = 1,231,325,388.68/40,135.87
  6. Step 6: Final answer
    x = 30,678.93

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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.