Home / 20,029.64-27,640.12-11,076.56

Finding the Fourth Proportional to 20,029.64, 27,640.12 and 11,076.56

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Solution

The fourth proportional to 20,029.64, 27,640.12 and 11,076.56 is: 15,285.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.64 : 27,640.12 = 11,076.56 : x
  2. Step 2: Convert to fraction form
    20,029.64/27,640.12 = 11,076.56/x
  3. Step 3: Cross multiply
    20,029.64x = 27,640.12 × 11,076.56
  4. Step 4: Simplify right side
    20,029.64x = 306,157,447.59
  5. Step 5: Solve for x
    x = 306,157,447.59/20,029.64
  6. Step 6: Final answer
    x = 15,285.22

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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.