Home / 20,243.44-27,936.29-11,289.98

Finding the Fourth Proportional to 20,243.44, 27,936.29 and 11,289.98

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Solution

The fourth proportional to 20,243.44, 27,936.29 and 11,289.98 is: 15,580.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.44 : 27,936.29 = 11,289.98 : x
  2. Step 2: Convert to fraction form
    20,243.44/27,936.29 = 11,289.98/x
  3. Step 3: Cross multiply
    20,243.44x = 27,936.29 × 11,289.98
  4. Step 4: Simplify right side
    20,243.44x = 315,400,253.44
  5. Step 5: Solve for x
    x = 315,400,253.44/20,243.44
  6. Step 6: Final answer
    x = 15,580.37

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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.