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Finding the Fourth Proportional to 18,206.20, 27,366.90 and 16,823.80

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Solution

The fourth proportional to 18,206.20, 27,366.90 and 16,823.80 is: 25,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,206.20 : 27,366.90 = 16,823.80 : x
  2. Step 2: Convert to fraction form
    18,206.20/27,366.90 = 16,823.80/x
  3. Step 3: Cross multiply
    18,206.20x = 27,366.90 × 16,823.80
  4. Step 4: Simplify right side
    18,206.20x = 460,415,252.22
  5. Step 5: Solve for x
    x = 460,415,252.22/18,206.20
  6. Step 6: Final answer
    x = 25,288.93

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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.