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Finding the Fourth Proportional to 40,310.31, 60,465.60 and 12,230.60

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Solution

The fourth proportional to 40,310.31, 60,465.60 and 12,230.60 is: 18,345.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,310.31 : 60,465.60 = 12,230.60 : x
  2. Step 2: Convert to fraction form
    40,310.31/60,465.60 = 12,230.60/x
  3. Step 3: Cross multiply
    40,310.31x = 60,465.60 × 12,230.60
  4. Step 4: Simplify right side
    40,310.31x = 739,530,265.03
  5. Step 5: Solve for x
    x = 739,530,265.03/40,310.31
  6. Step 6: Final answer
    x = 18,345.93

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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.