Home / 39,648.44-54,709.81-21,738.73

Finding the Fourth Proportional to 39,648.44, 54,709.81 and 21,738.73

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Solution

The fourth proportional to 39,648.44, 54,709.81 and 21,738.73 is: 29,996.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,648.44 : 54,709.81 = 21,738.73 : x
  2. Step 2: Convert to fraction form
    39,648.44/54,709.81 = 21,738.73/x
  3. Step 3: Cross multiply
    39,648.44x = 54,709.81 × 21,738.73
  4. Step 4: Simplify right side
    39,648.44x = 1,189,321,787.94
  5. Step 5: Solve for x
    x = 1,189,321,787.94/39,648.44
  6. Step 6: Final answer
    x = 29,996.69

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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.