Home / 38,936.36-53,732.36-21,940.80

Finding the Fourth Proportional to 38,936.36, 53,732.36 and 21,940.80

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Solution

The fourth proportional to 38,936.36, 53,732.36 and 21,940.80 is: 30,278.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,936.36 : 53,732.36 = 21,940.80 : x
  2. Step 2: Convert to fraction form
    38,936.36/53,732.36 = 21,940.80/x
  3. Step 3: Cross multiply
    38,936.36x = 53,732.36 × 21,940.80
  4. Step 4: Simplify right side
    38,936.36x = 1,178,930,964.29
  5. Step 5: Solve for x
    x = 1,178,930,964.29/38,936.36
  6. Step 6: Final answer
    x = 30,278.41

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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.