Home / 39,852.46-54,995.98-21,947.09

Finding the Fourth Proportional to 39,852.46, 54,995.98 and 21,947.09

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Solution

The fourth proportional to 39,852.46, 54,995.98 and 21,947.09 is: 30,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,852.46 : 54,995.98 = 21,947.09 : x
  2. Step 2: Convert to fraction form
    39,852.46/54,995.98 = 21,947.09/x
  3. Step 3: Cross multiply
    39,852.46x = 54,995.98 × 21,947.09
  4. Step 4: Simplify right side
    39,852.46x = 1,207,001,447.72
  5. Step 5: Solve for x
    x = 1,207,001,447.72/39,852.46
  6. Step 6: Final answer
    x = 30,286.75

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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.