Home / 39,481.94-54,485.22-21,577.22

Finding the Fourth Proportional to 39,481.94, 54,485.22 and 21,577.22

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Solution

The fourth proportional to 39,481.94, 54,485.22 and 21,577.22 is: 29,776.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,481.94 : 54,485.22 = 21,577.22 : x
  2. Step 2: Convert to fraction form
    39,481.94/54,485.22 = 21,577.22/x
  3. Step 3: Cross multiply
    39,481.94x = 54,485.22 × 21,577.22
  4. Step 4: Simplify right side
    39,481.94x = 1,175,639,578.69
  5. Step 5: Solve for x
    x = 1,175,639,578.69/39,481.94
  6. Step 6: Final answer
    x = 29,776.64

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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.