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Finding the Fourth Proportional to 33,054, 45,616.96 and 20,481.20

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Solution

The fourth proportional to 33,054, 45,616.96 and 20,481.20 is: 28,265.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,054 : 45,616.96 = 20,481.20 : x
  2. Step 2: Convert to fraction form
    33,054/45,616.96 = 20,481.20/x
  3. Step 3: Cross multiply
    33,054x = 45,616.96 × 20,481.20
  4. Step 4: Simplify right side
    33,054x = 934,290,081.15
  5. Step 5: Solve for x
    x = 934,290,081.15/33,054
  6. Step 6: Final answer
    x = 28,265.57

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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.