Home / 39,789.40-59,694.18-11,710.42

Finding the Fourth Proportional to 39,789.40, 59,694.18 and 11,710.42

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Solution

The fourth proportional to 39,789.40, 59,694.18 and 11,710.42 is: 17,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,789.40 : 59,694.18 = 11,710.42 : x
  2. Step 2: Convert to fraction form
    39,789.40/59,694.18 = 11,710.42/x
  3. Step 3: Cross multiply
    39,789.40x = 59,694.18 × 11,710.42
  4. Step 4: Simplify right side
    39,789.40x = 699,043,919.36
  5. Step 5: Solve for x
    x = 699,043,919.36/39,789.40
  6. Step 6: Final answer
    x = 17,568.60

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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.