Home / 20,088.06-27,724.41-12,131.43

Finding the Fourth Proportional to 20,088.06, 27,724.41 and 12,131.43

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Solution

The fourth proportional to 20,088.06, 27,724.41 and 12,131.43 is: 16,743.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.06 : 27,724.41 = 12,131.43 : x
  2. Step 2: Convert to fraction form
    20,088.06/27,724.41 = 12,131.43/x
  3. Step 3: Cross multiply
    20,088.06x = 27,724.41 × 12,131.43
  4. Step 4: Simplify right side
    20,088.06x = 336,336,739.21
  5. Step 5: Solve for x
    x = 336,336,739.21/20,088.06
  6. Step 6: Final answer
    x = 16,743.12

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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.