Home / 39,449.62-54,438.06-21,540.98

Finding the Fourth Proportional to 39,449.62, 54,438.06 and 21,540.98

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Solution

The fourth proportional to 39,449.62, 54,438.06 and 21,540.98 is: 29,725.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,449.62 : 54,438.06 = 21,540.98 : x
  2. Step 2: Convert to fraction form
    39,449.62/54,438.06 = 21,540.98/x
  3. Step 3: Cross multiply
    39,449.62x = 54,438.06 × 21,540.98
  4. Step 4: Simplify right side
    39,449.62x = 1,172,649,161.70
  5. Step 5: Solve for x
    x = 1,172,649,161.70/39,449.62
  6. Step 6: Final answer
    x = 29,725.24

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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.