Home / 15,429.52-23,144.34-3,742.72

Finding the Fourth Proportional to 15,429.52, 23,144.34 and 3,742.72

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Solution

The fourth proportional to 15,429.52, 23,144.34 and 3,742.72 is: 5,614.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429.52 : 23,144.34 = 3,742.72 : x
  2. Step 2: Convert to fraction form
    15,429.52/23,144.34 = 3,742.72/x
  3. Step 3: Cross multiply
    15,429.52x = 23,144.34 × 3,742.72
  4. Step 4: Simplify right side
    15,429.52x = 86,622,784.20
  5. Step 5: Solve for x
    x = 86,622,784.20/15,429.52
  6. Step 6: Final answer
    x = 5,614.09

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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.