Home / 19,803.05-29,716.11-7,331.75

Finding the Fourth Proportional to 19,803.05, 29,716.11 and 7,331.75

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Solution

The fourth proportional to 19,803.05, 29,716.11 and 7,331.75 is: 11,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,803.05 : 29,716.11 = 7,331.75 : x
  2. Step 2: Convert to fraction form
    19,803.05/29,716.11 = 7,331.75/x
  3. Step 3: Cross multiply
    19,803.05x = 29,716.11 × 7,331.75
  4. Step 4: Simplify right side
    19,803.05x = 217,870,940.91
  5. Step 5: Solve for x
    x = 217,870,940.91/19,803.05
  6. Step 6: Final answer
    x = 11,001.89

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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.