Home / 39,104.31-53,963.63-21,198.86

Finding the Fourth Proportional to 39,104.31, 53,963.63 and 21,198.86

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Solution

The fourth proportional to 39,104.31, 53,963.63 and 21,198.86 is: 29,254.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,104.31 : 53,963.63 = 21,198.86 : x
  2. Step 2: Convert to fraction form
    39,104.31/53,963.63 = 21,198.86/x
  3. Step 3: Cross multiply
    39,104.31x = 53,963.63 × 21,198.86
  4. Step 4: Simplify right side
    39,104.31x = 1,143,967,302.55
  5. Step 5: Solve for x
    x = 1,143,967,302.55/39,104.31
  6. Step 6: Final answer
    x = 29,254.25

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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.