Home / 18,738.20-28,049.70-16,664.60

Finding the Fourth Proportional to 18,738.20, 28,049.70 and 16,664.60

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Solution

The fourth proportional to 18,738.20, 28,049.70 and 16,664.60 is: 24,945.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.20 : 28,049.70 = 16,664.60 : x
  2. Step 2: Convert to fraction form
    18,738.20/28,049.70 = 16,664.60/x
  3. Step 3: Cross multiply
    18,738.20x = 28,049.70 × 16,664.60
  4. Step 4: Simplify right side
    18,738.20x = 467,437,030.62
  5. Step 5: Solve for x
    x = 467,437,030.62/18,738.20
  6. Step 6: Final answer
    x = 24,945.67

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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.