Home / 33,130.81-45,705.46-19,694.43

Finding the Fourth Proportional to 33,130.81, 45,705.46 and 19,694.43

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Solution

The fourth proportional to 33,130.81, 45,705.46 and 19,694.43 is: 27,169.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,130.81 : 45,705.46 = 19,694.43 : x
  2. Step 2: Convert to fraction form
    33,130.81/45,705.46 = 19,694.43/x
  3. Step 3: Cross multiply
    33,130.81x = 45,705.46 × 19,694.43
  4. Step 4: Simplify right side
    33,130.81x = 900,142,982.59
  5. Step 5: Solve for x
    x = 900,142,982.59/33,130.81
  6. Step 6: Final answer
    x = 27,169.36

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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.