Home / 39,807.39-54,936.48-21,902.83

Finding the Fourth Proportional to 39,807.39, 54,936.48 and 21,902.83

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Solution

The fourth proportional to 39,807.39, 54,936.48 and 21,902.83 is: 30,227.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,807.39 : 54,936.48 = 21,902.83 : x
  2. Step 2: Convert to fraction form
    39,807.39/54,936.48 = 21,902.83/x
  3. Step 3: Cross multiply
    39,807.39x = 54,936.48 × 21,902.83
  4. Step 4: Simplify right side
    39,807.39x = 1,203,264,382.24
  5. Step 5: Solve for x
    x = 1,203,264,382.24/39,807.39
  6. Step 6: Final answer
    x = 30,227.16

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Double scale
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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.