Home / 21,141.46-29,183.48-12,196.63

Finding the Fourth Proportional to 21,141.46, 29,183.48 and 12,196.63

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Solution

The fourth proportional to 21,141.46, 29,183.48 and 12,196.63 is: 16,836.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141.46 : 29,183.48 = 12,196.63 : x
  2. Step 2: Convert to fraction form
    21,141.46/29,183.48 = 12,196.63/x
  3. Step 3: Cross multiply
    21,141.46x = 29,183.48 × 12,196.63
  4. Step 4: Simplify right side
    21,141.46x = 355,940,107.67
  5. Step 5: Solve for x
    x = 355,940,107.67/21,141.46
  6. Step 6: Final answer
    x = 16,836.12

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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.