Home / 20,638.26-30,957.39-5,055.75

Finding the Fourth Proportional to 20,638.26, 30,957.39 and 5,055.75

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Solution

The fourth proportional to 20,638.26, 30,957.39 and 5,055.75 is: 7,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,638.26 : 30,957.39 = 5,055.75 : x
  2. Step 2: Convert to fraction form
    20,638.26/30,957.39 = 5,055.75/x
  3. Step 3: Cross multiply
    20,638.26x = 30,957.39 × 5,055.75
  4. Step 4: Simplify right side
    20,638.26x = 156,512,824.49
  5. Step 5: Solve for x
    x = 156,512,824.49/20,638.26
  6. Step 6: Final answer
    x = 7,583.63

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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.