Home / 19,255.25-28,799.49-11,338.90

Finding the Fourth Proportional to 19,255.25, 28,799.49 and 11,338.90

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Solution

The fourth proportional to 19,255.25, 28,799.49 and 11,338.90 is: 16,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.25 : 28,799.49 = 11,338.90 : x
  2. Step 2: Convert to fraction form
    19,255.25/28,799.49 = 11,338.90/x
  3. Step 3: Cross multiply
    19,255.25x = 28,799.49 × 11,338.90
  4. Step 4: Simplify right side
    19,255.25x = 326,554,537.16
  5. Step 5: Solve for x
    x = 326,554,537.16/19,255.25
  6. Step 6: Final answer
    x = 16,959.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.