Home / 39,844.10-54,982.70-21,935.71

Finding the Fourth Proportional to 39,844.10, 54,982.70 and 21,935.71

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Solution

The fourth proportional to 39,844.10, 54,982.70 and 21,935.71 is: 30,270.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,844.10 : 54,982.70 = 21,935.71 : x
  2. Step 2: Convert to fraction form
    39,844.10/54,982.70 = 21,935.71/x
  3. Step 3: Cross multiply
    39,844.10x = 54,982.70 × 21,935.71
  4. Step 4: Simplify right side
    39,844.10x = 1,206,084,603.53
  5. Step 5: Solve for x
    x = 1,206,084,603.53/39,844.10
  6. Step 6: Final answer
    x = 30,270.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.