Home / 20,375.41-30,566.36-8,688.73

Finding the Fourth Proportional to 20,375.41, 30,566.36 and 8,688.73

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Solution

The fourth proportional to 20,375.41, 30,566.36 and 8,688.73 is: 13,034.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375.41 : 30,566.36 = 8,688.73 : x
  2. Step 2: Convert to fraction form
    20,375.41/30,566.36 = 8,688.73/x
  3. Step 3: Cross multiply
    20,375.41x = 30,566.36 × 8,688.73
  4. Step 4: Simplify right side
    20,375.41x = 265,582,849.12
  5. Step 5: Solve for x
    x = 265,582,849.12/20,375.41
  6. Step 6: Final answer
    x = 13,034.48

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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.