Home / 39,653.44-54,723.06-21,749.92

Finding the Fourth Proportional to 39,653.44, 54,723.06 and 21,749.92

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Solution

The fourth proportional to 39,653.44, 54,723.06 and 21,749.92 is: 30,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,653.44 : 54,723.06 = 21,749.92 : x
  2. Step 2: Convert to fraction form
    39,653.44/54,723.06 = 21,749.92/x
  3. Step 3: Cross multiply
    39,653.44x = 54,723.06 × 21,749.92
  4. Step 4: Simplify right side
    39,653.44x = 1,190,222,177.16
  5. Step 5: Solve for x
    x = 1,190,222,177.16/39,653.44
  6. Step 6: Final answer
    x = 30,015.61

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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.