Home / 39,793.16-54,914.68-21,889.30

Finding the Fourth Proportional to 39,793.16, 54,914.68 and 21,889.30

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Solution

The fourth proportional to 39,793.16, 54,914.68 and 21,889.30 is: 30,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,793.16 : 54,914.68 = 21,889.30 : x
  2. Step 2: Convert to fraction form
    39,793.16/54,914.68 = 21,889.30/x
  3. Step 3: Cross multiply
    39,793.16x = 54,914.68 × 21,889.30
  4. Step 4: Simplify right side
    39,793.16x = 1,202,043,805.08
  5. Step 5: Solve for x
    x = 1,202,043,805.08/39,793.16
  6. Step 6: Final answer
    x = 30,207.30

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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.