Home / 21,934.10-30,268.97-11,862.56

Finding the Fourth Proportional to 21,934.10, 30,268.97 and 11,862.56

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Solution

The fourth proportional to 21,934.10, 30,268.97 and 11,862.56 is: 16,370.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.10 : 30,268.97 = 11,862.56 : x
  2. Step 2: Convert to fraction form
    21,934.10/30,268.97 = 11,862.56/x
  3. Step 3: Cross multiply
    21,934.10x = 30,268.97 × 11,862.56
  4. Step 4: Simplify right side
    21,934.10x = 359,067,351.07
  5. Step 5: Solve for x
    x = 359,067,351.07/21,934.10
  6. Step 6: Final answer
    x = 16,370.28

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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.