Home / 20,202.63-30,289.88-8,951.87

Finding the Fourth Proportional to 20,202.63, 30,289.88 and 8,951.87

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Solution

The fourth proportional to 20,202.63, 30,289.88 and 8,951.87 is: 13,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202.63 : 30,289.88 = 8,951.87 : x
  2. Step 2: Convert to fraction form
    20,202.63/30,289.88 = 8,951.87/x
  3. Step 3: Cross multiply
    20,202.63x = 30,289.88 × 8,951.87
  4. Step 4: Simplify right side
    20,202.63x = 271,150,871.87
  5. Step 5: Solve for x
    x = 271,150,871.87/20,202.63
  6. Step 6: Final answer
    x = 13,421.56

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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.