Home / 21,408.57-32,119.34-15,180.62

Finding the Fourth Proportional to 21,408.57, 32,119.34 and 15,180.62

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Solution

The fourth proportional to 21,408.57, 32,119.34 and 15,180.62 is: 22,775.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,408.57 : 32,119.34 = 15,180.62 : x
  2. Step 2: Convert to fraction form
    21,408.57/32,119.34 = 15,180.62/x
  3. Step 3: Cross multiply
    21,408.57x = 32,119.34 × 15,180.62
  4. Step 4: Simplify right side
    21,408.57x = 487,591,258.69
  5. Step 5: Solve for x
    x = 487,591,258.69/21,408.57
  6. Step 6: Final answer
    x = 22,775.52

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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.