Home / 21,197.22-29,249.64-12,242.94

Finding the Fourth Proportional to 21,197.22, 29,249.64 and 12,242.94

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Solution

The fourth proportional to 21,197.22, 29,249.64 and 12,242.94 is: 16,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.22 : 29,249.64 = 12,242.94 : x
  2. Step 2: Convert to fraction form
    21,197.22/29,249.64 = 12,242.94/x
  3. Step 3: Cross multiply
    21,197.22x = 29,249.64 × 12,242.94
  4. Step 4: Simplify right side
    21,197.22x = 358,101,587.54
  5. Step 5: Solve for x
    x = 358,101,587.54/21,197.22
  6. Step 6: Final answer
    x = 16,893.80

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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.