Home / 15,431.31-23,147.10-3,744.63

Finding the Fourth Proportional to 15,431.31, 23,147.10 and 3,744.63

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Solution

The fourth proportional to 15,431.31, 23,147.10 and 3,744.63 is: 5,616.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.31 : 23,147.10 = 3,744.63 : x
  2. Step 2: Convert to fraction form
    15,431.31/23,147.10 = 3,744.63/x
  3. Step 3: Cross multiply
    15,431.31x = 23,147.10 × 3,744.63
  4. Step 4: Simplify right side
    15,431.31x = 86,677,325.07
  5. Step 5: Solve for x
    x = 86,677,325.07/15,431.31
  6. Step 6: Final answer
    x = 5,616.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.