Home / 39,700.23-54,786.41-21,796.39

Finding the Fourth Proportional to 39,700.23, 54,786.41 and 21,796.39

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Solution

The fourth proportional to 39,700.23, 54,786.41 and 21,796.39 is: 30,079.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,700.23 : 54,786.41 = 21,796.39 : x
  2. Step 2: Convert to fraction form
    39,700.23/54,786.41 = 21,796.39/x
  3. Step 3: Cross multiply
    39,700.23x = 54,786.41 × 21,796.39
  4. Step 4: Simplify right side
    39,700.23x = 1,194,145,959.06
  5. Step 5: Solve for x
    x = 1,194,145,959.06/39,700.23
  6. Step 6: Final answer
    x = 30,079.07

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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.