Home / 21,171.24-29,218.44-11,741.58

Finding the Fourth Proportional to 21,171.24, 29,218.44 and 11,741.58

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Solution

The fourth proportional to 21,171.24, 29,218.44 and 11,741.58 is: 16,204.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,171.24 : 29,218.44 = 11,741.58 : x
  2. Step 2: Convert to fraction form
    21,171.24/29,218.44 = 11,741.58/x
  3. Step 3: Cross multiply
    21,171.24x = 29,218.44 × 11,741.58
  4. Step 4: Simplify right side
    21,171.24x = 343,070,650.74
  5. Step 5: Solve for x
    x = 343,070,650.74/21,171.24
  6. Step 6: Final answer
    x = 16,204.56

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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.