Home / 18,704.43-28,056.66-10,907.78

Finding the Fourth Proportional to 18,704.43, 28,056.66 and 10,907.78

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Solution

The fourth proportional to 18,704.43, 28,056.66 and 10,907.78 is: 16,361.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.43 : 28,056.66 = 10,907.78 : x
  2. Step 2: Convert to fraction form
    18,704.43/28,056.66 = 10,907.78/x
  3. Step 3: Cross multiply
    18,704.43x = 28,056.66 × 10,907.78
  4. Step 4: Simplify right side
    18,704.43x = 306,035,734.53
  5. Step 5: Solve for x
    x = 306,035,734.53/18,704.43
  6. Step 6: Final answer
    x = 16,361.67

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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.