Home / 20,144.09-27,798.78-12,184.02

Finding the Fourth Proportional to 20,144.09, 27,798.78 and 12,184.02

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Solution

The fourth proportional to 20,144.09, 27,798.78 and 12,184.02 is: 16,813.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.09 : 27,798.78 = 12,184.02 : x
  2. Step 2: Convert to fraction form
    20,144.09/27,798.78 = 12,184.02/x
  3. Step 3: Cross multiply
    20,144.09x = 27,798.78 × 12,184.02
  4. Step 4: Simplify right side
    20,144.09x = 338,700,891.50
  5. Step 5: Solve for x
    x = 338,700,891.50/20,144.09
  6. Step 6: Final answer
    x = 16,813.91

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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.