Home / 20,076.72-27,705.44-11,124.24

Finding the Fourth Proportional to 20,076.72, 27,705.44 and 11,124.24

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Solution

The fourth proportional to 20,076.72, 27,705.44 and 11,124.24 is: 15,351.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.72 : 27,705.44 = 11,124.24 : x
  2. Step 2: Convert to fraction form
    20,076.72/27,705.44 = 11,124.24/x
  3. Step 3: Cross multiply
    20,076.72x = 27,705.44 × 11,124.24
  4. Step 4: Simplify right side
    20,076.72x = 308,201,963.87
  5. Step 5: Solve for x
    x = 308,201,963.87/20,076.72
  6. Step 6: Final answer
    x = 15,351.21

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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.