Home / 39,747.35-54,852.73-21,843.99

Finding the Fourth Proportional to 39,747.35, 54,852.73 and 21,843.99

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Solution

The fourth proportional to 39,747.35, 54,852.73 and 21,843.99 is: 30,145.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,747.35 : 54,852.73 = 21,843.99 : x
  2. Step 2: Convert to fraction form
    39,747.35/54,852.73 = 21,843.99/x
  3. Step 3: Cross multiply
    39,747.35x = 54,852.73 × 21,843.99
  4. Step 4: Simplify right side
    39,747.35x = 1,198,202,430.98
  5. Step 5: Solve for x
    x = 1,198,202,430.98/39,747.35
  6. Step 6: Final answer
    x = 30,145.47

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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.