Home / 33,118.28-45,703-18,780.82

Finding the Fourth Proportional to 33,118.28, 45,703 and 18,780.82

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Solution

The fourth proportional to 33,118.28, 45,703 and 18,780.82 is: 25,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,118.28 : 45,703 = 18,780.82 : x
  2. Step 2: Convert to fraction form
    33,118.28/45,703 = 18,780.82/x
  3. Step 3: Cross multiply
    33,118.28x = 45,703 × 18,780.82
  4. Step 4: Simplify right side
    33,118.28x = 858,339,816.46
  5. Step 5: Solve for x
    x = 858,339,816.46/33,118.28
  6. Step 6: Final answer
    x = 25,917.40

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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.