Home / 20,057.51-27,678.96-11,104.49

Finding the Fourth Proportional to 20,057.51, 27,678.96 and 11,104.49

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Solution

The fourth proportional to 20,057.51, 27,678.96 and 11,104.49 is: 15,323.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.51 : 27,678.96 = 11,104.49 : x
  2. Step 2: Convert to fraction form
    20,057.51/27,678.96 = 11,104.49/x
  3. Step 3: Cross multiply
    20,057.51x = 27,678.96 × 11,104.49
  4. Step 4: Simplify right side
    20,057.51x = 307,360,596.14
  5. Step 5: Solve for x
    x = 307,360,596.14/20,057.51
  6. Step 6: Final answer
    x = 15,323.97

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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.