Home / 21,691.44-29,935.71-12,260.07

Finding the Fourth Proportional to 21,691.44, 29,935.71 and 12,260.07

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Solution

The fourth proportional to 21,691.44, 29,935.71 and 12,260.07 is: 16,919.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,691.44 : 29,935.71 = 12,260.07 : x
  2. Step 2: Convert to fraction form
    21,691.44/29,935.71 = 12,260.07/x
  3. Step 3: Cross multiply
    21,691.44x = 29,935.71 × 12,260.07
  4. Step 4: Simplify right side
    21,691.44x = 367,013,900.10
  5. Step 5: Solve for x
    x = 367,013,900.10/21,691.44
  6. Step 6: Final answer
    x = 16,919.76

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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.