Home / 39,653.82-54,725.77-21,752.31

Finding the Fourth Proportional to 39,653.82, 54,725.77 and 21,752.31

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Solution

The fourth proportional to 39,653.82, 54,725.77 and 21,752.31 is: 30,020.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,653.82 : 54,725.77 = 21,752.31 : x
  2. Step 2: Convert to fraction form
    39,653.82/54,725.77 = 21,752.31/x
  3. Step 3: Cross multiply
    39,653.82x = 54,725.77 × 21,752.31
  4. Step 4: Simplify right side
    39,653.82x = 1,190,412,146.44
  5. Step 5: Solve for x
    x = 1,190,412,146.44/39,653.82
  6. Step 6: Final answer
    x = 30,020.11

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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.