Home / 39,819.71-54,949.21-21,914.26

Finding the Fourth Proportional to 39,819.71, 54,949.21 and 21,914.26

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Solution

The fourth proportional to 39,819.71, 54,949.21 and 21,914.26 is: 30,240.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819.71 : 54,949.21 = 21,914.26 : x
  2. Step 2: Convert to fraction form
    39,819.71/54,949.21 = 21,914.26/x
  3. Step 3: Cross multiply
    39,819.71x = 54,949.21 × 21,914.26
  4. Step 4: Simplify right side
    39,819.71x = 1,204,171,082.58
  5. Step 5: Solve for x
    x = 1,204,171,082.58/39,819.71
  6. Step 6: Final answer
    x = 30,240.58

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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.