Home / 27,847.52-38,431.61-15,910.60

Finding the Fourth Proportional to 27,847.52, 38,431.61 and 15,910.60

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Solution

The fourth proportional to 27,847.52, 38,431.61 and 15,910.60 is: 21,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.52 : 38,431.61 = 15,910.60 : x
  2. Step 2: Convert to fraction form
    27,847.52/38,431.61 = 15,910.60/x
  3. Step 3: Cross multiply
    27,847.52x = 38,431.61 × 15,910.60
  4. Step 4: Simplify right side
    27,847.52x = 611,469,702.35
  5. Step 5: Solve for x
    x = 611,469,702.35/27,847.52
  6. Step 6: Final answer
    x = 21,957.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.