Home / 21,198.77-29,252.14-12,249.16

Finding the Fourth Proportional to 21,198.77, 29,252.14 and 12,249.16

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Solution

The fourth proportional to 21,198.77, 29,252.14 and 12,249.16 is: 16,902.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.77 : 29,252.14 = 12,249.16 : x
  2. Step 2: Convert to fraction form
    21,198.77/29,252.14 = 12,249.16/x
  3. Step 3: Cross multiply
    21,198.77x = 29,252.14 × 12,249.16
  4. Step 4: Simplify right side
    21,198.77x = 358,314,039.45
  5. Step 5: Solve for x
    x = 358,314,039.45/21,198.77
  6. Step 6: Final answer
    x = 16,902.59

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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.