Home / 13,819.71-20,725.76-3,822.08

Finding the Fourth Proportional to 13,819.71, 20,725.76 and 3,822.08

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Solution

The fourth proportional to 13,819.71, 20,725.76 and 3,822.08 is: 5,732.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.71 : 20,725.76 = 3,822.08 : x
  2. Step 2: Convert to fraction form
    13,819.71/20,725.76 = 3,822.08/x
  3. Step 3: Cross multiply
    13,819.71x = 20,725.76 × 3,822.08
  4. Step 4: Simplify right side
    13,819.71x = 79,215,390.04
  5. Step 5: Solve for x
    x = 79,215,390.04/13,819.71
  6. Step 6: Final answer
    x = 5,732.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.