Home / 19,961.65-29,943.99-11,642.49

Finding the Fourth Proportional to 19,961.65, 29,943.99 and 11,642.49

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Solution

The fourth proportional to 19,961.65, 29,943.99 and 11,642.49 is: 17,464.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.65 : 29,943.99 = 11,642.49 : x
  2. Step 2: Convert to fraction form
    19,961.65/29,943.99 = 11,642.49/x
  3. Step 3: Cross multiply
    19,961.65x = 29,943.99 × 11,642.49
  4. Step 4: Simplify right side
    19,961.65x = 348,622,545.92
  5. Step 5: Solve for x
    x = 348,622,545.92/19,961.65
  6. Step 6: Final answer
    x = 17,464.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.