Home / 15,431.82-23,147.63-4,338.44

Finding the Fourth Proportional to 15,431.82, 23,147.63 and 4,338.44

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Solution

The fourth proportional to 15,431.82, 23,147.63 and 4,338.44 is: 6,507.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.82 : 23,147.63 = 4,338.44 : x
  2. Step 2: Convert to fraction form
    15,431.82/23,147.63 = 4,338.44/x
  3. Step 3: Cross multiply
    15,431.82x = 23,147.63 × 4,338.44
  4. Step 4: Simplify right side
    15,431.82x = 100,424,466.47
  5. Step 5: Solve for x
    x = 100,424,466.47/15,431.82
  6. Step 6: Final answer
    x = 6,507.62

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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.