Home / 16,910.97-25,321.08-13,778.16

Finding the Fourth Proportional to 16,910.97, 25,321.08 and 13,778.16

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Solution

The fourth proportional to 16,910.97, 25,321.08 and 13,778.16 is: 20,630.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,910.97 : 25,321.08 = 13,778.16 : x
  2. Step 2: Convert to fraction form
    16,910.97/25,321.08 = 13,778.16/x
  3. Step 3: Cross multiply
    16,910.97x = 25,321.08 × 13,778.16
  4. Step 4: Simplify right side
    16,910.97x = 348,877,891.61
  5. Step 5: Solve for x
    x = 348,877,891.61/16,910.97
  6. Step 6: Final answer
    x = 20,630.27

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1.5x scale

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.