Home / 39,794.84-54,915.72-21,889.85

Finding the Fourth Proportional to 39,794.84, 54,915.72 and 21,889.85

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Solution

The fourth proportional to 39,794.84, 54,915.72 and 21,889.85 is: 30,207.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,794.84 : 54,915.72 = 21,889.85 : x
  2. Step 2: Convert to fraction form
    39,794.84/54,915.72 = 21,889.85/x
  3. Step 3: Cross multiply
    39,794.84x = 54,915.72 × 21,889.85
  4. Step 4: Simplify right side
    39,794.84x = 1,202,096,873.44
  5. Step 5: Solve for x
    x = 1,202,096,873.44/39,794.84
  6. Step 6: Final answer
    x = 30,207.36

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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.