Home / 13,783.35-20,671.90-3,922.41

Finding the Fourth Proportional to 13,783.35, 20,671.90 and 3,922.41

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Solution

The fourth proportional to 13,783.35, 20,671.90 and 3,922.41 is: 5,882.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.35 : 20,671.90 = 3,922.41 : x
  2. Step 2: Convert to fraction form
    13,783.35/20,671.90 = 3,922.41/x
  3. Step 3: Cross multiply
    13,783.35x = 20,671.90 × 3,922.41
  4. Step 4: Simplify right side
    13,783.35x = 81,083,667.28
  5. Step 5: Solve for x
    x = 81,083,667.28/13,783.35
  6. Step 6: Final answer
    x = 5,882.73

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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.