Home / 39,680.97-54,759.56-21,776.27

Finding the Fourth Proportional to 39,680.97, 54,759.56 and 21,776.27

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Solution

The fourth proportional to 39,680.97, 54,759.56 and 21,776.27 is: 30,051.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.97 : 54,759.56 = 21,776.27 : x
  2. Step 2: Convert to fraction form
    39,680.97/54,759.56 = 21,776.27/x
  3. Step 3: Cross multiply
    39,680.97x = 54,759.56 × 21,776.27
  4. Step 4: Simplify right side
    39,680.97x = 1,192,458,963.64
  5. Step 5: Solve for x
    x = 1,192,458,963.64/39,680.97
  6. Step 6: Final answer
    x = 30,051.15

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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.