Home / 39,857.19-59,822.78-20,149.62

Finding the Fourth Proportional to 39,857.19, 59,822.78 and 20,149.62

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Solution

The fourth proportional to 39,857.19, 59,822.78 and 20,149.62 is: 30,243.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,857.19 : 59,822.78 = 20,149.62 : x
  2. Step 2: Convert to fraction form
    39,857.19/59,822.78 = 20,149.62/x
  3. Step 3: Cross multiply
    39,857.19x = 59,822.78 × 20,149.62
  4. Step 4: Simplify right side
    39,857.19x = 1,205,406,183.60
  5. Step 5: Solve for x
    x = 1,205,406,183.60/39,857.19
  6. Step 6: Final answer
    x = 30,243.13

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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.