Home / 47,915.20-71,867.32-12,852.12

Finding the Fourth Proportional to 47,915.20, 71,867.32 and 12,852.12

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Solution

The fourth proportional to 47,915.20, 71,867.32 and 12,852.12 is: 19,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,915.20 : 71,867.32 = 12,852.12 : x
  2. Step 2: Convert to fraction form
    47,915.20/71,867.32 = 12,852.12/x
  3. Step 3: Cross multiply
    47,915.20x = 71,867.32 × 12,852.12
  4. Step 4: Simplify right side
    47,915.20x = 923,647,420.72
  5. Step 5: Solve for x
    x = 923,647,420.72/47,915.20
  6. Step 6: Final answer
    x = 19,276.71

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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.