Home / 39,852.75-54,997.16-21,947.83

Finding the Fourth Proportional to 39,852.75, 54,997.16 and 21,947.83

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Solution

The fourth proportional to 39,852.75, 54,997.16 and 21,947.83 is: 30,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,852.75 : 54,997.16 = 21,947.83 : x
  2. Step 2: Convert to fraction form
    39,852.75/54,997.16 = 21,947.83/x
  3. Step 3: Cross multiply
    39,852.75x = 54,997.16 × 21,947.83
  4. Step 4: Simplify right side
    39,852.75x = 1,207,068,318.16
  5. Step 5: Solve for x
    x = 1,207,068,318.16/39,852.75
  6. Step 6: Final answer
    x = 30,288.21

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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.