Home / 39,793.68-54,915.98-21,889.44

Finding the Fourth Proportional to 39,793.68, 54,915.98 and 21,889.44

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Solution

The fourth proportional to 39,793.68, 54,915.98 and 21,889.44 is: 30,207.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,793.68 : 54,915.98 = 21,889.44 : x
  2. Step 2: Convert to fraction form
    39,793.68/54,915.98 = 21,889.44/x
  3. Step 3: Cross multiply
    39,793.68x = 54,915.98 × 21,889.44
  4. Step 4: Simplify right side
    39,793.68x = 1,202,079,939.80
  5. Step 5: Solve for x
    x = 1,202,079,939.80/39,793.68
  6. Step 6: Final answer
    x = 30,207.81

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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.