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Finding the Fourth Proportional to 28,250.40, 42,375.60 and 16,440.60

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Solution

The fourth proportional to 28,250.40, 42,375.60 and 16,440.60 is: 24,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.40 : 42,375.60 = 16,440.60 : x
  2. Step 2: Convert to fraction form
    28,250.40/42,375.60 = 16,440.60/x
  3. Step 3: Cross multiply
    28,250.40x = 42,375.60 × 16,440.60
  4. Step 4: Simplify right side
    28,250.40x = 696,680,289.36
  5. Step 5: Solve for x
    x = 696,680,289.36/28,250.40
  6. Step 6: Final answer
    x = 24,660.90

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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.