Home / 20,077.17-30,107.19-8,222.76

Finding the Fourth Proportional to 20,077.17, 30,107.19 and 8,222.76

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Solution

The fourth proportional to 20,077.17, 30,107.19 and 8,222.76 is: 12,330.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.17 : 30,107.19 = 8,222.76 : x
  2. Step 2: Convert to fraction form
    20,077.17/30,107.19 = 8,222.76/x
  3. Step 3: Cross multiply
    20,077.17x = 30,107.19 × 8,222.76
  4. Step 4: Simplify right side
    20,077.17x = 247,564,197.64
  5. Step 5: Solve for x
    x = 247,564,197.64/20,077.17
  6. Step 6: Final answer
    x = 12,330.63

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.