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Finding the Fourth Proportional to 33,297, 45,930.40 and 20,725.80

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Solution

The fourth proportional to 33,297, 45,930.40 and 20,725.80 is: 28,589.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,297 : 45,930.40 = 20,725.80 : x
  2. Step 2: Convert to fraction form
    33,297/45,930.40 = 20,725.80/x
  3. Step 3: Cross multiply
    33,297x = 45,930.40 × 20,725.80
  4. Step 4: Simplify right side
    33,297x = 951,944,284.32
  5. Step 5: Solve for x
    x = 951,944,284.32/33,297
  6. Step 6: Final answer
    x = 28,589.49

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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.