Home / 38,568.22-53,218.82-21,571.58

Finding the Fourth Proportional to 38,568.22, 53,218.82 and 21,571.58

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Solution

The fourth proportional to 38,568.22, 53,218.82 and 21,571.58 is: 29,765.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,568.22 : 53,218.82 = 21,571.58 : x
  2. Step 2: Convert to fraction form
    38,568.22/53,218.82 = 21,571.58/x
  3. Step 3: Cross multiply
    38,568.22x = 53,218.82 × 21,571.58
  4. Step 4: Simplify right side
    38,568.22x = 1,148,014,220.11
  5. Step 5: Solve for x
    x = 1,148,014,220.11/38,568.22
  6. Step 6: Final answer
    x = 29,765.81

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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.