Home / 33,270.80-45,921.42-21,942.32

Finding the Fourth Proportional to 33,270.80, 45,921.42 and 21,942.32

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Solution

The fourth proportional to 33,270.80, 45,921.42 and 21,942.32 is: 30,285.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,270.80 : 45,921.42 = 21,942.32 : x
  2. Step 2: Convert to fraction form
    33,270.80/45,921.42 = 21,942.32/x
  3. Step 3: Cross multiply
    33,270.80x = 45,921.42 × 21,942.32
  4. Step 4: Simplify right side
    33,270.80x = 1,007,622,492.49
  5. Step 5: Solve for x
    x = 1,007,622,492.49/33,270.80
  6. Step 6: Final answer
    x = 30,285.49

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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.