Home / 21,628.12-29,845-12,199

Finding the Fourth Proportional to 21,628.12, 29,845 and 12,199

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Solution

The fourth proportional to 21,628.12, 29,845 and 12,199 is: 16,833.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,628.12 : 29,845 = 12,199 : x
  2. Step 2: Convert to fraction form
    21,628.12/29,845 = 12,199/x
  3. Step 3: Cross multiply
    21,628.12x = 29,845 × 12,199
  4. Step 4: Simplify right side
    21,628.12x = 364,079,155
  5. Step 5: Solve for x
    x = 364,079,155/21,628.12
  6. Step 6: Final answer
    x = 16,833.60

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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.