Home / 39,568.97-54,603.11-21,660.55

Finding the Fourth Proportional to 39,568.97, 54,603.11 and 21,660.55

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Solution

The fourth proportional to 39,568.97, 54,603.11 and 21,660.55 is: 29,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,568.97 : 54,603.11 = 21,660.55 : x
  2. Step 2: Convert to fraction form
    39,568.97/54,603.11 = 21,660.55/x
  3. Step 3: Cross multiply
    39,568.97x = 54,603.11 × 21,660.55
  4. Step 4: Simplify right side
    39,568.97x = 1,182,733,012.99
  5. Step 5: Solve for x
    x = 1,182,733,012.99/39,568.97
  6. Step 6: Final answer
    x = 29,890.42

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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.