Home / 39,605.38-59,371.16-19,860.86

Finding the Fourth Proportional to 39,605.38, 59,371.16 and 19,860.86

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Solution

The fourth proportional to 39,605.38, 59,371.16 and 19,860.86 is: 29,772.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,605.38 : 59,371.16 = 19,860.86 : x
  2. Step 2: Convert to fraction form
    39,605.38/59,371.16 = 19,860.86/x
  3. Step 3: Cross multiply
    39,605.38x = 59,371.16 × 19,860.86
  4. Step 4: Simplify right side
    39,605.38x = 1,179,162,345.92
  5. Step 5: Solve for x
    x = 1,179,162,345.92/39,605.38
  6. Step 6: Final answer
    x = 29,772.78

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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.