Home / 19,306.80-28,910.52-13,375.26

Finding the Fourth Proportional to 19,306.80, 28,910.52 and 13,375.26

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Solution

The fourth proportional to 19,306.80, 28,910.52 and 13,375.26 is: 20,028.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,306.80 : 28,910.52 = 13,375.26 : x
  2. Step 2: Convert to fraction form
    19,306.80/28,910.52 = 13,375.26/x
  3. Step 3: Cross multiply
    19,306.80x = 28,910.52 × 13,375.26
  4. Step 4: Simplify right side
    19,306.80x = 386,685,721.74
  5. Step 5: Solve for x
    x = 386,685,721.74/19,306.80
  6. Step 6: Final answer
    x = 20,028.47

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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.