Home / 38,839.53-53,583.42-21,839.85

Finding the Fourth Proportional to 38,839.53, 53,583.42 and 21,839.85

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Solution

The fourth proportional to 38,839.53, 53,583.42 and 21,839.85 is: 30,130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,839.53 : 53,583.42 = 21,839.85 : x
  2. Step 2: Convert to fraction form
    38,839.53/53,583.42 = 21,839.85/x
  3. Step 3: Cross multiply
    38,839.53x = 53,583.42 × 21,839.85
  4. Step 4: Simplify right side
    38,839.53x = 1,170,253,855.29
  5. Step 5: Solve for x
    x = 1,170,253,855.29/38,839.53
  6. Step 6: Final answer
    x = 30,130.48

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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.