Home / 20,223.37-27,908.31-11,270.64

Finding the Fourth Proportional to 20,223.37, 27,908.31 and 11,270.64

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Solution

The fourth proportional to 20,223.37, 27,908.31 and 11,270.64 is: 15,553.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.37 : 27,908.31 = 11,270.64 : x
  2. Step 2: Convert to fraction form
    20,223.37/27,908.31 = 11,270.64/x
  3. Step 3: Cross multiply
    20,223.37x = 27,908.31 × 11,270.64
  4. Step 4: Simplify right side
    20,223.37x = 314,544,661.94
  5. Step 5: Solve for x
    x = 314,544,661.94/20,223.37
  6. Step 6: Final answer
    x = 15,553.52

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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.