Home / 27,745.05-38,287.60-15,169.80

Finding the Fourth Proportional to 27,745.05, 38,287.60 and 15,169.80

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Solution

The fourth proportional to 27,745.05, 38,287.60 and 15,169.80 is: 20,934.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,745.05 : 38,287.60 = 15,169.80 : x
  2. Step 2: Convert to fraction form
    27,745.05/38,287.60 = 15,169.80/x
  3. Step 3: Cross multiply
    27,745.05x = 38,287.60 × 15,169.80
  4. Step 4: Simplify right side
    27,745.05x = 580,815,340.13
  5. Step 5: Solve for x
    x = 580,815,340.13/27,745.05
  6. Step 6: Final answer
    x = 20,934.01

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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.