Home / 39,087.82-53,940.90-21,183.04

Finding the Fourth Proportional to 39,087.82, 53,940.90 and 21,183.04

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Solution

The fourth proportional to 39,087.82, 53,940.90 and 21,183.04 is: 29,232.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,087.82 : 53,940.90 = 21,183.04 : x
  2. Step 2: Convert to fraction form
    39,087.82/53,940.90 = 21,183.04/x
  3. Step 3: Cross multiply
    39,087.82x = 53,940.90 × 21,183.04
  4. Step 4: Simplify right side
    39,087.82x = 1,142,632,242.34
  5. Step 5: Solve for x
    x = 1,142,632,242.34/39,087.82
  6. Step 6: Final answer
    x = 29,232.44

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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.