Home / 39,103.88-53,963.73-21,198.84

Finding the Fourth Proportional to 39,103.88, 53,963.73 and 21,198.84

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Solution

The fourth proportional to 39,103.88, 53,963.73 and 21,198.84 is: 29,254.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,103.88 : 53,963.73 = 21,198.84 : x
  2. Step 2: Convert to fraction form
    39,103.88/53,963.73 = 21,198.84/x
  3. Step 3: Cross multiply
    39,103.88x = 53,963.73 × 21,198.84
  4. Step 4: Simplify right side
    39,103.88x = 1,143,968,478.07
  5. Step 5: Solve for x
    x = 1,143,968,478.07/39,103.88
  6. Step 6: Final answer
    x = 29,254.61

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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.