Home / 15,631.28-23,439.82-6,742.41

Finding the Fourth Proportional to 15,631.28, 23,439.82 and 6,742.41

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Solution

The fourth proportional to 15,631.28, 23,439.82 and 6,742.41 is: 10,110.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631.28 : 23,439.82 = 6,742.41 : x
  2. Step 2: Convert to fraction form
    15,631.28/23,439.82 = 6,742.41/x
  3. Step 3: Cross multiply
    15,631.28x = 23,439.82 × 6,742.41
  4. Step 4: Simplify right side
    15,631.28x = 158,040,725.86
  5. Step 5: Solve for x
    x = 158,040,725.86/15,631.28
  6. Step 6: Final answer
    x = 10,110.54

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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.