Home / 18,855.33-28,067.45-18,575.07

Finding the Fourth Proportional to 18,855.33, 28,067.45 and 18,575.07

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Solution

The fourth proportional to 18,855.33, 28,067.45 and 18,575.07 is: 27,650.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.33 : 28,067.45 = 18,575.07 : x
  2. Step 2: Convert to fraction form
    18,855.33/28,067.45 = 18,575.07/x
  3. Step 3: Cross multiply
    18,855.33x = 28,067.45 × 18,575.07
  4. Step 4: Simplify right side
    18,855.33x = 521,354,755.60
  5. Step 5: Solve for x
    x = 521,354,755.60/18,855.33
  6. Step 6: Final answer
    x = 27,650.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.