Home / 28,789.73-43,121.97-13,967.44

Finding the Fourth Proportional to 28,789.73, 43,121.97 and 13,967.44

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Solution

The fourth proportional to 28,789.73, 43,121.97 and 13,967.44 is: 20,920.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.73 : 43,121.97 = 13,967.44 : x
  2. Step 2: Convert to fraction form
    28,789.73/43,121.97 = 13,967.44/x
  3. Step 3: Cross multiply
    28,789.73x = 43,121.97 × 13,967.44
  4. Step 4: Simplify right side
    28,789.73x = 602,303,420.85
  5. Step 5: Solve for x
    x = 602,303,420.85/28,789.73
  6. Step 6: Final answer
    x = 20,920.77

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1.5x scale

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.