Home / 20,736.27-31,104.54-7,583.49

Finding the Fourth Proportional to 20,736.27, 31,104.54 and 7,583.49

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Solution

The fourth proportional to 20,736.27, 31,104.54 and 7,583.49 is: 11,375.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.27 : 31,104.54 = 7,583.49 : x
  2. Step 2: Convert to fraction form
    20,736.27/31,104.54 = 7,583.49/x
  3. Step 3: Cross multiply
    20,736.27x = 31,104.54 × 7,583.49
  4. Step 4: Simplify right side
    20,736.27x = 235,880,968.04
  5. Step 5: Solve for x
    x = 235,880,968.04/20,736.27
  6. Step 6: Final answer
    x = 11,375.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.