Home / 20,102.72-27,743.62-11,605.12

Finding the Fourth Proportional to 20,102.72, 27,743.62 and 11,605.12

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Solution

The fourth proportional to 20,102.72, 27,743.62 and 11,605.12 is: 16,016.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.72 : 27,743.62 = 11,605.12 : x
  2. Step 2: Convert to fraction form
    20,102.72/27,743.62 = 11,605.12/x
  3. Step 3: Cross multiply
    20,102.72x = 27,743.62 × 11,605.12
  4. Step 4: Simplify right side
    20,102.72x = 321,968,039.33
  5. Step 5: Solve for x
    x = 321,968,039.33/20,102.72
  6. Step 6: Final answer
    x = 16,016.14

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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.