Home / 39,653.25-54,716.45-21,743.55

Finding the Fourth Proportional to 39,653.25, 54,716.45 and 21,743.55

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Solution

The fourth proportional to 39,653.25, 54,716.45 and 21,743.55 is: 30,003.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,653.25 : 54,716.45 = 21,743.55 : x
  2. Step 2: Convert to fraction form
    39,653.25/54,716.45 = 21,743.55/x
  3. Step 3: Cross multiply
    39,653.25x = 54,716.45 × 21,743.55
  4. Step 4: Simplify right side
    39,653.25x = 1,189,729,757.68
  5. Step 5: Solve for x
    x = 1,189,729,757.68/39,653.25
  6. Step 6: Final answer
    x = 30,003.34

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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.