Home / 40,028.22-55,239.39-22,122.90

Finding the Fourth Proportional to 40,028.22, 55,239.39 and 22,122.90

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Solution

The fourth proportional to 40,028.22, 55,239.39 and 22,122.90 is: 30,529.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,028.22 : 55,239.39 = 22,122.90 : x
  2. Step 2: Convert to fraction form
    40,028.22/55,239.39 = 22,122.90/x
  3. Step 3: Cross multiply
    40,028.22x = 55,239.39 × 22,122.90
  4. Step 4: Simplify right side
    40,028.22x = 1,222,055,501.03
  5. Step 5: Solve for x
    x = 1,222,055,501.03/40,028.22
  6. Step 6: Final answer
    x = 30,529.85

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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.