Home / 33,138.30-45,713.41-19,699.99

Finding the Fourth Proportional to 33,138.30, 45,713.41 and 19,699.99

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Solution

The fourth proportional to 33,138.30, 45,713.41 and 19,699.99 is: 27,175.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,138.30 : 45,713.41 = 19,699.99 : x
  2. Step 2: Convert to fraction form
    33,138.30/45,713.41 = 19,699.99/x
  3. Step 3: Cross multiply
    33,138.30x = 45,713.41 × 19,699.99
  4. Step 4: Simplify right side
    33,138.30x = 900,553,719.87
  5. Step 5: Solve for x
    x = 900,553,719.87/33,138.30
  6. Step 6: Final answer
    x = 27,175.62

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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.