Home / 33,129.74-45,707.79-18,787.98

Finding the Fourth Proportional to 33,129.74, 45,707.79 and 18,787.98

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Solution

The fourth proportional to 33,129.74, 45,707.79 and 18,787.98 is: 25,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.74 : 45,707.79 = 18,787.98 : x
  2. Step 2: Convert to fraction form
    33,129.74/45,707.79 = 18,787.98/x
  3. Step 3: Cross multiply
    33,129.74x = 45,707.79 × 18,787.98
  4. Step 4: Simplify right side
    33,129.74x = 858,757,286.22
  5. Step 5: Solve for x
    x = 858,757,286.22/33,129.74
  6. Step 6: Final answer
    x = 25,921.04

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1.5x scale

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.