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Finding the Fourth Proportional to 40,330.40, 60,495.60 and 12,250.40

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Solution

The fourth proportional to 40,330.40, 60,495.60 and 12,250.40 is: 18,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,330.40 : 60,495.60 = 12,250.40 : x
  2. Step 2: Convert to fraction form
    40,330.40/60,495.60 = 12,250.40/x
  3. Step 3: Cross multiply
    40,330.40x = 60,495.60 × 12,250.40
  4. Step 4: Simplify right side
    40,330.40x = 741,095,298.24
  5. Step 5: Solve for x
    x = 741,095,298.24/40,330.40
  6. Step 6: Final answer
    x = 18,375.60

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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.