Home / 33,118.97-45,703.19-18,780.17

Finding the Fourth Proportional to 33,118.97, 45,703.19 and 18,780.17

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Solution

The fourth proportional to 33,118.97, 45,703.19 and 18,780.17 is: 25,916.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,118.97 : 45,703.19 = 18,780.17 : x
  2. Step 2: Convert to fraction form
    33,118.97/45,703.19 = 18,780.17/x
  3. Step 3: Cross multiply
    33,118.97x = 45,703.19 × 18,780.17
  4. Step 4: Simplify right side
    33,118.97x = 858,313,496.18
  5. Step 5: Solve for x
    x = 858,313,496.18/33,118.97
  6. Step 6: Final answer
    x = 25,916.07

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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.