Home / 38,408.22-57,638.25-13,448.43

Finding the Fourth Proportional to 38,408.22, 57,638.25 and 13,448.43

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Solution

The fourth proportional to 38,408.22, 57,638.25 and 13,448.43 is: 20,181.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,408.22 : 57,638.25 = 13,448.43 : x
  2. Step 2: Convert to fraction form
    38,408.22/57,638.25 = 13,448.43/x
  3. Step 3: Cross multiply
    38,408.22x = 57,638.25 × 13,448.43
  4. Step 4: Simplify right side
    38,408.22x = 775,143,970.45
  5. Step 5: Solve for x
    x = 775,143,970.45/38,408.22
  6. Step 6: Final answer
    x = 20,181.72

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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.