Home / 19,620.45-27,080.12-11,661.14

Finding the Fourth Proportional to 19,620.45, 27,080.12 and 11,661.14

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Solution

The fourth proportional to 19,620.45, 27,080.12 and 11,661.14 is: 16,094.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.45 : 27,080.12 = 11,661.14 : x
  2. Step 2: Convert to fraction form
    19,620.45/27,080.12 = 11,661.14/x
  3. Step 3: Cross multiply
    19,620.45x = 27,080.12 × 11,661.14
  4. Step 4: Simplify right side
    19,620.45x = 315,784,876.83
  5. Step 5: Solve for x
    x = 315,784,876.83/19,620.45
  6. Step 6: Final answer
    x = 16,094.68

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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.