Home / 20,775.56-31,163.29-7,627.94

Finding the Fourth Proportional to 20,775.56, 31,163.29 and 7,627.94

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Solution

The fourth proportional to 20,775.56, 31,163.29 and 7,627.94 is: 11,441.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775.56 : 31,163.29 = 7,627.94 : x
  2. Step 2: Convert to fraction form
    20,775.56/31,163.29 = 7,627.94/x
  3. Step 3: Cross multiply
    20,775.56x = 31,163.29 × 7,627.94
  4. Step 4: Simplify right side
    20,775.56x = 237,711,765.16
  5. Step 5: Solve for x
    x = 237,711,765.16/20,775.56
  6. Step 6: Final answer
    x = 11,441.90

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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.