Home / 21,171.24-29,203.08-13,627.38

Finding the Fourth Proportional to 21,171.24, 29,203.08 and 13,627.38

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Solution

The fourth proportional to 21,171.24, 29,203.08 and 13,627.38 is: 18,797.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,171.24 : 29,203.08 = 13,627.38 : x
  2. Step 2: Convert to fraction form
    21,171.24/29,203.08 = 13,627.38/x
  3. Step 3: Cross multiply
    21,171.24x = 29,203.08 × 13,627.38
  4. Step 4: Simplify right side
    21,171.24x = 397,961,468.33
  5. Step 5: Solve for x
    x = 397,961,468.33/21,171.24
  6. Step 6: Final answer
    x = 18,797.27

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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.