Home / 18,146.94-25,029.99-16,659.78

Finding the Fourth Proportional to 18,146.94, 25,029.99 and 16,659.78

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Solution

The fourth proportional to 18,146.94, 25,029.99 and 16,659.78 is: 22,978.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.94 : 25,029.99 = 16,659.78 : x
  2. Step 2: Convert to fraction form
    18,146.94/25,029.99 = 16,659.78/x
  3. Step 3: Cross multiply
    18,146.94x = 25,029.99 × 16,659.78
  4. Step 4: Simplify right side
    18,146.94x = 416,994,126.80
  5. Step 5: Solve for x
    x = 416,994,126.80/18,146.94
  6. Step 6: Final answer
    x = 22,978.76

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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.