Home / 40,621.50-60,938.09-12,543.96

Finding the Fourth Proportional to 40,621.50, 60,938.09 and 12,543.96

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Solution

The fourth proportional to 40,621.50, 60,938.09 and 12,543.96 is: 18,817.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,621.50 : 60,938.09 = 12,543.96 : x
  2. Step 2: Convert to fraction form
    40,621.50/60,938.09 = 12,543.96/x
  3. Step 3: Cross multiply
    40,621.50x = 60,938.09 × 12,543.96
  4. Step 4: Simplify right side
    40,621.50x = 764,404,900.72
  5. Step 5: Solve for x
    x = 764,404,900.72/40,621.50
  6. Step 6: Final answer
    x = 18,817.74

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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.