Home / 20,190.54-30,296.97-8,503.50

Finding the Fourth Proportional to 20,190.54, 30,296.97 and 8,503.50

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Solution

The fourth proportional to 20,190.54, 30,296.97 and 8,503.50 is: 12,759.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.54 : 30,296.97 = 8,503.50 : x
  2. Step 2: Convert to fraction form
    20,190.54/30,296.97 = 8,503.50/x
  3. Step 3: Cross multiply
    20,190.54x = 30,296.97 × 8,503.50
  4. Step 4: Simplify right side
    20,190.54x = 257,630,284.40
  5. Step 5: Solve for x
    x = 257,630,284.40/20,190.54
  6. Step 6: Final answer
    x = 12,759.95

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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.