Home / 39,084.32-53,936.01-21,179.48

Finding the Fourth Proportional to 39,084.32, 53,936.01 and 21,179.48

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Solution

The fourth proportional to 39,084.32, 53,936.01 and 21,179.48 is: 29,227.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,084.32 : 53,936.01 = 21,179.48 : x
  2. Step 2: Convert to fraction form
    39,084.32/53,936.01 = 21,179.48/x
  3. Step 3: Cross multiply
    39,084.32x = 53,936.01 × 21,179.48
  4. Step 4: Simplify right side
    39,084.32x = 1,142,336,375.39
  5. Step 5: Solve for x
    x = 1,142,336,375.39/39,084.32
  6. Step 6: Final answer
    x = 29,227.48

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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.