Home / 20,610.18-30,912.48-8,765.46

Finding the Fourth Proportional to 20,610.18, 30,912.48 and 8,765.46

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Solution

The fourth proportional to 20,610.18, 30,912.48 and 8,765.46 is: 13,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.18 : 30,912.48 = 8,765.46 : x
  2. Step 2: Convert to fraction form
    20,610.18/30,912.48 = 8,765.46/x
  3. Step 3: Cross multiply
    20,610.18x = 30,912.48 × 8,765.46
  4. Step 4: Simplify right side
    20,610.18x = 270,962,106.94
  5. Step 5: Solve for x
    x = 270,962,106.94/20,610.18
  6. Step 6: Final answer
    x = 13,147.00

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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.