Home / 28,067.46-38,716.29-20,504.55

Finding the Fourth Proportional to 28,067.46, 38,716.29 and 20,504.55

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Solution

The fourth proportional to 28,067.46, 38,716.29 and 20,504.55 is: 28,284.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.46 : 38,716.29 = 20,504.55 : x
  2. Step 2: Convert to fraction form
    28,067.46/38,716.29 = 20,504.55/x
  3. Step 3: Cross multiply
    28,067.46x = 38,716.29 × 20,504.55
  4. Step 4: Simplify right side
    28,067.46x = 793,860,104.12
  5. Step 5: Solve for x
    x = 793,860,104.12/28,067.46
  6. Step 6: Final answer
    x = 28,284.00

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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.