Home / 19,961.10-27,545.40-11,007.90

Finding the Fourth Proportional to 19,961.10, 27,545.40 and 11,007.90

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Solution

The fourth proportional to 19,961.10, 27,545.40 and 11,007.90 is: 15,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.10 : 27,545.40 = 11,007.90 : x
  2. Step 2: Convert to fraction form
    19,961.10/27,545.40 = 11,007.90/x
  3. Step 3: Cross multiply
    19,961.10x = 27,545.40 × 11,007.90
  4. Step 4: Simplify right side
    19,961.10x = 303,217,008.66
  5. Step 5: Solve for x
    x = 303,217,008.66/19,961.10
  6. Step 6: Final answer
    x = 15,190.40

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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.