Home / 39,103.59-53,963.23-21,198.88

Finding the Fourth Proportional to 39,103.59, 53,963.23 and 21,198.88

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Solution

The fourth proportional to 39,103.59, 53,963.23 and 21,198.88 is: 29,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,103.59 : 53,963.23 = 21,198.88 : x
  2. Step 2: Convert to fraction form
    39,103.59/53,963.23 = 21,198.88/x
  3. Step 3: Cross multiply
    39,103.59x = 53,963.23 × 21,198.88
  4. Step 4: Simplify right side
    39,103.59x = 1,143,959,767.37
  5. Step 5: Solve for x
    x = 1,143,959,767.37/39,103.59
  6. Step 6: Final answer
    x = 29,254.60

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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.