Home / 20,007.78-27,610.29-11,056.02

Finding the Fourth Proportional to 20,007.78, 27,610.29 and 11,056.02

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Solution

The fourth proportional to 20,007.78, 27,610.29 and 11,056.02 is: 15,257.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.78 : 27,610.29 = 11,056.02 : x
  2. Step 2: Convert to fraction form
    20,007.78/27,610.29 = 11,056.02/x
  3. Step 3: Cross multiply
    20,007.78x = 27,610.29 × 11,056.02
  4. Step 4: Simplify right side
    20,007.78x = 305,259,918.45
  5. Step 5: Solve for x
    x = 305,259,918.45/20,007.78
  6. Step 6: Final answer
    x = 15,257.06

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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.