Home / 38,855.43-53,617.34-21,862.44

Finding the Fourth Proportional to 38,855.43, 53,617.34 and 21,862.44

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Solution

The fourth proportional to 38,855.43, 53,617.34 and 21,862.44 is: 30,168.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,855.43 : 53,617.34 = 21,862.44 : x
  2. Step 2: Convert to fraction form
    38,855.43/53,617.34 = 21,862.44/x
  3. Step 3: Cross multiply
    38,855.43x = 53,617.34 × 21,862.44
  4. Step 4: Simplify right side
    38,855.43x = 1,172,205,933.37
  5. Step 5: Solve for x
    x = 1,172,205,933.37/38,855.43
  6. Step 6: Final answer
    x = 30,168.39

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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.