Home / 38,530.20-57,795.30-19,784.10

Finding the Fourth Proportional to 38,530.20, 57,795.30 and 19,784.10

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Solution

The fourth proportional to 38,530.20, 57,795.30 and 19,784.10 is: 29,676.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,530.20 : 57,795.30 = 19,784.10 : x
  2. Step 2: Convert to fraction form
    38,530.20/57,795.30 = 19,784.10/x
  3. Step 3: Cross multiply
    38,530.20x = 57,795.30 × 19,784.10
  4. Step 4: Simplify right side
    38,530.20x = 1,143,427,994.73
  5. Step 5: Solve for x
    x = 1,143,427,994.73/38,530.20
  6. Step 6: Final answer
    x = 29,676.15

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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.