Home / 15,408.20-23,112.16-3,721.38

Finding the Fourth Proportional to 15,408.20, 23,112.16 and 3,721.38

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Solution

The fourth proportional to 15,408.20, 23,112.16 and 3,721.38 is: 5,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.20 : 23,112.16 = 3,721.38 : x
  2. Step 2: Convert to fraction form
    15,408.20/23,112.16 = 3,721.38/x
  3. Step 3: Cross multiply
    15,408.20x = 23,112.16 × 3,721.38
  4. Step 4: Simplify right side
    15,408.20x = 86,009,129.98
  5. Step 5: Solve for x
    x = 86,009,129.98/15,408.20
  6. Step 6: Final answer
    x = 5,582.04

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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.