Home / 20,500.46-30,730.13-7,163.10

Finding the Fourth Proportional to 20,500.46, 30,730.13 and 7,163.10

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Solution

The fourth proportional to 20,500.46, 30,730.13 and 7,163.10 is: 10,737.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500.46 : 30,730.13 = 7,163.10 : x
  2. Step 2: Convert to fraction form
    20,500.46/30,730.13 = 7,163.10/x
  3. Step 3: Cross multiply
    20,500.46x = 30,730.13 × 7,163.10
  4. Step 4: Simplify right side
    20,500.46x = 220,122,994.20
  5. Step 5: Solve for x
    x = 220,122,994.20/20,500.46
  6. Step 6: Final answer
    x = 10,737.47

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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.