Home / 33,120-45,705.72-18,012.66

Finding the Fourth Proportional to 33,120, 45,705.72 and 18,012.66

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Solution

The fourth proportional to 33,120, 45,705.72 and 18,012.66 is: 24,857.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,120 : 45,705.72 = 18,012.66 : x
  2. Step 2: Convert to fraction form
    33,120/45,705.72 = 18,012.66/x
  3. Step 3: Cross multiply
    33,120x = 45,705.72 × 18,012.66
  4. Step 4: Simplify right side
    33,120x = 823,281,594.42
  5. Step 5: Solve for x
    x = 823,281,594.42/33,120
  6. Step 6: Final answer
    x = 24,857.54

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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.