Home / 33,108.74-45,696.11-19,687.65

Finding the Fourth Proportional to 33,108.74, 45,696.11 and 19,687.65

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Solution

The fourth proportional to 33,108.74, 45,696.11 and 19,687.65 is: 27,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,108.74 : 45,696.11 = 19,687.65 : x
  2. Step 2: Convert to fraction form
    33,108.74/45,696.11 = 19,687.65/x
  3. Step 3: Cross multiply
    33,108.74x = 45,696.11 × 19,687.65
  4. Step 4: Simplify right side
    33,108.74x = 899,648,921.60
  5. Step 5: Solve for x
    x = 899,648,921.60/33,108.74
  6. Step 6: Final answer
    x = 27,172.55

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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.