Home / 39,796.50-54,915.57-21,892.26

Finding the Fourth Proportional to 39,796.50, 54,915.57 and 21,892.26

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Solution

The fourth proportional to 39,796.50, 54,915.57 and 21,892.26 is: 30,209.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,796.50 : 54,915.57 = 21,892.26 : x
  2. Step 2: Convert to fraction form
    39,796.50/54,915.57 = 21,892.26/x
  3. Step 3: Cross multiply
    39,796.50x = 54,915.57 × 21,892.26
  4. Step 4: Simplify right side
    39,796.50x = 1,202,225,936.49
  5. Step 5: Solve for x
    x = 1,202,225,936.49/39,796.50
  6. Step 6: Final answer
    x = 30,209.34

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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.