Home / 28,519.94-39,357.39-15,773.78

Finding the Fourth Proportional to 28,519.94, 39,357.39 and 15,773.78

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Solution

The fourth proportional to 28,519.94, 39,357.39 and 15,773.78 is: 21,767.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.94 : 39,357.39 = 15,773.78 : x
  2. Step 2: Convert to fraction form
    28,519.94/39,357.39 = 15,773.78/x
  3. Step 3: Cross multiply
    28,519.94x = 39,357.39 × 15,773.78
  4. Step 4: Simplify right side
    28,519.94x = 620,814,811.23
  5. Step 5: Solve for x
    x = 620,814,811.23/28,519.94
  6. Step 6: Final answer
    x = 21,767.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.