Home / 18,515.36-27,901.84-16,760.90

Finding the Fourth Proportional to 18,515.36, 27,901.84 and 16,760.90

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Solution

The fourth proportional to 18,515.36, 27,901.84 and 16,760.90 is: 25,257.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.36 : 27,901.84 = 16,760.90 : x
  2. Step 2: Convert to fraction form
    18,515.36/27,901.84 = 16,760.90/x
  3. Step 3: Cross multiply
    18,515.36x = 27,901.84 × 16,760.90
  4. Step 4: Simplify right side
    18,515.36x = 467,659,950.06
  5. Step 5: Solve for x
    x = 467,659,950.06/18,515.36
  6. Step 6: Final answer
    x = 25,257.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.