Home / 20,361.92-30,545.32-7,211.60

Finding the Fourth Proportional to 20,361.92, 30,545.32 and 7,211.60

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Solution

The fourth proportional to 20,361.92, 30,545.32 and 7,211.60 is: 10,818.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361.92 : 30,545.32 = 7,211.60 : x
  2. Step 2: Convert to fraction form
    20,361.92/30,545.32 = 7,211.60/x
  3. Step 3: Cross multiply
    20,361.92x = 30,545.32 × 7,211.60
  4. Step 4: Simplify right side
    20,361.92x = 220,280,629.71
  5. Step 5: Solve for x
    x = 220,280,629.71/20,361.92
  6. Step 6: Final answer
    x = 10,818.26

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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.