Home / 20,040.09-27,655.20-11,087.43

Finding the Fourth Proportional to 20,040.09, 27,655.20 and 11,087.43

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Solution

The fourth proportional to 20,040.09, 27,655.20 and 11,087.43 is: 15,300.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.09 : 27,655.20 = 11,087.43 : x
  2. Step 2: Convert to fraction form
    20,040.09/27,655.20 = 11,087.43/x
  3. Step 3: Cross multiply
    20,040.09x = 27,655.20 × 11,087.43
  4. Step 4: Simplify right side
    20,040.09x = 306,625,094.14
  5. Step 5: Solve for x
    x = 306,625,094.14/20,040.09
  6. Step 6: Final answer
    x = 15,300.58

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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.