Home / 20,072.39-27,698.27-11,120.27

Finding the Fourth Proportional to 20,072.39, 27,698.27 and 11,120.27

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Solution

The fourth proportional to 20,072.39, 27,698.27 and 11,120.27 is: 15,345.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.39 : 27,698.27 = 11,120.27 : x
  2. Step 2: Convert to fraction form
    20,072.39/27,698.27 = 11,120.27/x
  3. Step 3: Cross multiply
    20,072.39x = 27,698.27 × 11,120.27
  4. Step 4: Simplify right side
    20,072.39x = 308,012,046.84
  5. Step 5: Solve for x
    x = 308,012,046.84/20,072.39
  6. Step 6: Final answer
    x = 15,345.06

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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.