Home / 21,036.56-29,021.24-13,375.73

Finding the Fourth Proportional to 21,036.56, 29,021.24 and 13,375.73

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Solution

The fourth proportional to 21,036.56, 29,021.24 and 13,375.73 is: 18,452.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,036.56 : 29,021.24 = 13,375.73 : x
  2. Step 2: Convert to fraction form
    21,036.56/29,021.24 = 13,375.73/x
  3. Step 3: Cross multiply
    21,036.56x = 29,021.24 × 13,375.73
  4. Step 4: Simplify right side
    21,036.56x = 388,180,058.52
  5. Step 5: Solve for x
    x = 388,180,058.52/21,036.56
  6. Step 6: Final answer
    x = 18,452.64

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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.