Home / 39,776.08-54,891.23-21,871.23

Finding the Fourth Proportional to 39,776.08, 54,891.23 and 21,871.23

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Solution

The fourth proportional to 39,776.08, 54,891.23 and 21,871.23 is: 30,182.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,776.08 : 54,891.23 = 21,871.23 : x
  2. Step 2: Convert to fraction form
    39,776.08/54,891.23 = 21,871.23/x
  3. Step 3: Cross multiply
    39,776.08x = 54,891.23 × 21,871.23
  4. Step 4: Simplify right side
    39,776.08x = 1,200,538,716.31
  5. Step 5: Solve for x
    x = 1,200,538,716.31/39,776.08
  6. Step 6: Final answer
    x = 30,182.43

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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.