Home / 20,629.52-30,939.64-9,534.58

Finding the Fourth Proportional to 20,629.52, 30,939.64 and 9,534.58

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Solution

The fourth proportional to 20,629.52, 30,939.64 and 9,534.58 is: 14,299.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.52 : 30,939.64 = 9,534.58 : x
  2. Step 2: Convert to fraction form
    20,629.52/30,939.64 = 9,534.58/x
  3. Step 3: Cross multiply
    20,629.52x = 30,939.64 × 9,534.58
  4. Step 4: Simplify right side
    20,629.52x = 294,996,472.75
  5. Step 5: Solve for x
    x = 294,996,472.75/20,629.52
  6. Step 6: Final answer
    x = 14,299.73

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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.