Home / 20,277.45-30,416.05-8,269.56

Finding the Fourth Proportional to 20,277.45, 30,416.05 and 8,269.56

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Solution

The fourth proportional to 20,277.45, 30,416.05 and 8,269.56 is: 12,404.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.45 : 30,416.05 = 8,269.56 : x
  2. Step 2: Convert to fraction form
    20,277.45/30,416.05 = 8,269.56/x
  3. Step 3: Cross multiply
    20,277.45x = 30,416.05 × 8,269.56
  4. Step 4: Simplify right side
    20,277.45x = 251,527,360.77
  5. Step 5: Solve for x
    x = 251,527,360.77/20,277.45
  6. Step 6: Final answer
    x = 12,404.29

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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.