Home / 20,796.23-28,695.48-11,843.90

Finding the Fourth Proportional to 20,796.23, 28,695.48 and 11,843.90

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Solution

The fourth proportional to 20,796.23, 28,695.48 and 11,843.90 is: 16,342.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.23 : 28,695.48 = 11,843.90 : x
  2. Step 2: Convert to fraction form
    20,796.23/28,695.48 = 11,843.90/x
  3. Step 3: Cross multiply
    20,796.23x = 28,695.48 × 11,843.90
  4. Step 4: Simplify right side
    20,796.23x = 339,866,395.57
  5. Step 5: Solve for x
    x = 339,866,395.57/20,796.23
  6. Step 6: Final answer
    x = 16,342.69

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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.