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Finding the Fourth Proportional to 20,599.67, 30,918.07 and 10,745.87

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Solution

The fourth proportional to 20,599.67, 30,918.07 and 10,745.87 is: 16,128.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.67 : 30,918.07 = 10,745.87 : x
  2. Step 2: Convert to fraction form
    20,599.67/30,918.07 = 10,745.87/x
  3. Step 3: Cross multiply
    20,599.67x = 30,918.07 × 10,745.87
  4. Step 4: Simplify right side
    20,599.67x = 332,241,560.87
  5. Step 5: Solve for x
    x = 332,241,560.87/20,599.67
  6. Step 6: Final answer
    x = 16,128.49

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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.