Home / 33,320.40-45,982.32-18,212.82

Finding the Fourth Proportional to 33,320.40, 45,982.32 and 18,212.82

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Solution

The fourth proportional to 33,320.40, 45,982.32 and 18,212.82 is: 25,133.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,320.40 : 45,982.32 = 18,212.82 : x
  2. Step 2: Convert to fraction form
    33,320.40/45,982.32 = 18,212.82/x
  3. Step 3: Cross multiply
    33,320.40x = 45,982.32 × 18,212.82
  4. Step 4: Simplify right side
    33,320.40x = 837,467,717.34
  5. Step 5: Solve for x
    x = 837,467,717.34/33,320.40
  6. Step 6: Final answer
    x = 25,133.78

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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.