Home / 40,661.20-60,997.64-12,583.60

Finding the Fourth Proportional to 40,661.20, 60,997.64 and 12,583.60

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Solution

The fourth proportional to 40,661.20, 60,997.64 and 12,583.60 is: 18,877.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,661.20 : 60,997.64 = 12,583.60 : x
  2. Step 2: Convert to fraction form
    40,661.20/60,997.64 = 12,583.60/x
  3. Step 3: Cross multiply
    40,661.20x = 60,997.64 × 12,583.60
  4. Step 4: Simplify right side
    40,661.20x = 767,569,902.70
  5. Step 5: Solve for x
    x = 767,569,902.70/40,661.20
  6. Step 6: Final answer
    x = 18,877.21

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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.