Home / 20,194.18-27,855-13,033.24

Finding the Fourth Proportional to 20,194.18, 27,855 and 13,033.24

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Solution

The fourth proportional to 20,194.18, 27,855 and 13,033.24 is: 17,977.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,194.18 : 27,855 = 13,033.24 : x
  2. Step 2: Convert to fraction form
    20,194.18/27,855 = 13,033.24/x
  3. Step 3: Cross multiply
    20,194.18x = 27,855 × 13,033.24
  4. Step 4: Simplify right side
    20,194.18x = 363,040,900.20
  5. Step 5: Solve for x
    x = 363,040,900.20/20,194.18
  6. Step 6: Final answer
    x = 17,977.50

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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.