Home / 21,077.08-29,092.44-13,912.23

Finding the Fourth Proportional to 21,077.08, 29,092.44 and 13,912.23

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Solution

The fourth proportional to 21,077.08, 29,092.44 and 13,912.23 is: 19,202.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077.08 : 29,092.44 = 13,912.23 : x
  2. Step 2: Convert to fraction form
    21,077.08/29,092.44 = 13,912.23/x
  3. Step 3: Cross multiply
    21,077.08x = 29,092.44 × 13,912.23
  4. Step 4: Simplify right side
    21,077.08x = 404,740,716.54
  5. Step 5: Solve for x
    x = 404,740,716.54/21,077.08
  6. Step 6: Final answer
    x = 19,202.88

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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.