Home / 38,533.20-57,799.80-19,787.10

Finding the Fourth Proportional to 38,533.20, 57,799.80 and 19,787.10

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Solution

The fourth proportional to 38,533.20, 57,799.80 and 19,787.10 is: 29,680.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,533.20 : 57,799.80 = 19,787.10 : x
  2. Step 2: Convert to fraction form
    38,533.20/57,799.80 = 19,787.10/x
  3. Step 3: Cross multiply
    38,533.20x = 57,799.80 × 19,787.10
  4. Step 4: Simplify right side
    38,533.20x = 1,143,690,422.58
  5. Step 5: Solve for x
    x = 1,143,690,422.58/38,533.20
  6. Step 6: Final answer
    x = 29,680.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.