Home / 20,544.44-30,782.82-8,688.56

Finding the Fourth Proportional to 20,544.44, 30,782.82 and 8,688.56

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Solution

The fourth proportional to 20,544.44, 30,782.82 and 8,688.56 is: 13,018.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.44 : 30,782.82 = 8,688.56 : x
  2. Step 2: Convert to fraction form
    20,544.44/30,782.82 = 8,688.56/x
  3. Step 3: Cross multiply
    20,544.44x = 30,782.82 × 8,688.56
  4. Step 4: Simplify right side
    20,544.44x = 267,458,378.54
  5. Step 5: Solve for x
    x = 267,458,378.54/20,544.44
  6. Step 6: Final answer
    x = 13,018.53

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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.