Home / 21,727.78-29,983.58-12,296.14

Finding the Fourth Proportional to 21,727.78, 29,983.58 and 12,296.14

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Solution

The fourth proportional to 21,727.78, 29,983.58 and 12,296.14 is: 16,968.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,727.78 : 29,983.58 = 12,296.14 : x
  2. Step 2: Convert to fraction form
    21,727.78/29,983.58 = 12,296.14/x
  3. Step 3: Cross multiply
    21,727.78x = 29,983.58 × 12,296.14
  4. Step 4: Simplify right side
    21,727.78x = 368,682,235.90
  5. Step 5: Solve for x
    x = 368,682,235.90/21,727.78
  6. Step 6: Final answer
    x = 16,968.24

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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.