Home / 20,629.88-30,944.54-5,047.64

Finding the Fourth Proportional to 20,629.88, 30,944.54 and 5,047.64

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Solution

The fourth proportional to 20,629.88, 30,944.54 and 5,047.64 is: 7,571.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.88 : 30,944.54 = 5,047.64 : x
  2. Step 2: Convert to fraction form
    20,629.88/30,944.54 = 5,047.64/x
  3. Step 3: Cross multiply
    20,629.88x = 30,944.54 × 5,047.64
  4. Step 4: Simplify right side
    20,629.88x = 156,196,897.89
  5. Step 5: Solve for x
    x = 156,196,897.89/20,629.88
  6. Step 6: Final answer
    x = 7,571.39

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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.