Home / 21,696.67-29,944.18-12,137.09

Finding the Fourth Proportional to 21,696.67, 29,944.18 and 12,137.09

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Solution

The fourth proportional to 21,696.67, 29,944.18 and 12,137.09 is: 16,750.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,696.67 : 29,944.18 = 12,137.09 : x
  2. Step 2: Convert to fraction form
    21,696.67/29,944.18 = 12,137.09/x
  3. Step 3: Cross multiply
    21,696.67x = 29,944.18 × 12,137.09
  4. Step 4: Simplify right side
    21,696.67x = 363,435,072.09
  5. Step 5: Solve for x
    x = 363,435,072.09/21,696.67
  6. Step 6: Final answer
    x = 16,750.73

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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.