Home / 20,147.44-27,802.56-11,194.90

Finding the Fourth Proportional to 20,147.44, 27,802.56 and 11,194.90

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Solution

The fourth proportional to 20,147.44, 27,802.56 and 11,194.90 is: 15,448.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.44 : 27,802.56 = 11,194.90 : x
  2. Step 2: Convert to fraction form
    20,147.44/27,802.56 = 11,194.90/x
  3. Step 3: Cross multiply
    20,147.44x = 27,802.56 × 11,194.90
  4. Step 4: Simplify right side
    20,147.44x = 311,246,878.94
  5. Step 5: Solve for x
    x = 311,246,878.94/20,147.44
  6. Step 6: Final answer
    x = 15,448.46

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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.