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Finding the Fourth Proportional to 33,664.80, 50,441.64 and 20,477.28

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Solution

The fourth proportional to 33,664.80, 50,441.64 and 20,477.28 is: 30,682.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,664.80 : 50,441.64 = 20,477.28 : x
  2. Step 2: Convert to fraction form
    33,664.80/50,441.64 = 20,477.28/x
  3. Step 3: Cross multiply
    33,664.80x = 50,441.64 × 20,477.28
  4. Step 4: Simplify right side
    33,664.80x = 1,032,907,585.94
  5. Step 5: Solve for x
    x = 1,032,907,585.94/33,664.80
  6. Step 6: Final answer
    x = 30,682.12

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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.