Home / 20,481.06-30,730.23-18,846.48

Finding the Fourth Proportional to 20,481.06, 30,730.23 and 18,846.48

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Solution

The fourth proportional to 20,481.06, 30,730.23 and 18,846.48 is: 28,277.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,481.06 : 30,730.23 = 18,846.48 : x
  2. Step 2: Convert to fraction form
    20,481.06/30,730.23 = 18,846.48/x
  3. Step 3: Cross multiply
    20,481.06x = 30,730.23 × 18,846.48
  4. Step 4: Simplify right side
    20,481.06x = 579,156,665.09
  5. Step 5: Solve for x
    x = 579,156,665.09/20,481.06
  6. Step 6: Final answer
    x = 28,277.67

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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.