Home / 15,431.74-23,147.60-3,744.96

Finding the Fourth Proportional to 15,431.74, 23,147.60 and 3,744.96

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Solution

The fourth proportional to 15,431.74, 23,147.60 and 3,744.96 is: 5,617.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.74 : 23,147.60 = 3,744.96 : x
  2. Step 2: Convert to fraction form
    15,431.74/23,147.60 = 3,744.96/x
  3. Step 3: Cross multiply
    15,431.74x = 23,147.60 × 3,744.96
  4. Step 4: Simplify right side
    15,431.74x = 86,686,836.10
  5. Step 5: Solve for x
    x = 86,686,836.10/15,431.74
  6. Step 6: Final answer
    x = 5,617.44

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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.