Home / 20,068.11-27,691.71-11,113.36

Finding the Fourth Proportional to 20,068.11, 27,691.71 and 11,113.36

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Solution

The fourth proportional to 20,068.11, 27,691.71 and 11,113.36 is: 15,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.11 : 27,691.71 = 11,113.36 : x
  2. Step 2: Convert to fraction form
    20,068.11/27,691.71 = 11,113.36/x
  3. Step 3: Cross multiply
    20,068.11x = 27,691.71 × 11,113.36
  4. Step 4: Simplify right side
    20,068.11x = 307,747,942.25
  5. Step 5: Solve for x
    x = 307,747,942.25/20,068.11
  6. Step 6: Final answer
    x = 15,335.17

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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.