Home / 21,190.01-29,241.91-11,629.98

Finding the Fourth Proportional to 21,190.01, 29,241.91 and 11,629.98

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Solution

The fourth proportional to 21,190.01, 29,241.91 and 11,629.98 is: 16,049.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190.01 : 29,241.91 = 11,629.98 : x
  2. Step 2: Convert to fraction form
    21,190.01/29,241.91 = 11,629.98/x
  3. Step 3: Cross multiply
    21,190.01x = 29,241.91 × 11,629.98
  4. Step 4: Simplify right side
    21,190.01x = 340,082,843.00
  5. Step 5: Solve for x
    x = 340,082,843.00/21,190.01
  6. Step 6: Final answer
    x = 16,049.21

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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.