Home / 20,770.23-31,159.44-7,622.73

Finding the Fourth Proportional to 20,770.23, 31,159.44 and 7,622.73

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Solution

The fourth proportional to 20,770.23, 31,159.44 and 7,622.73 is: 11,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,770.23 : 31,159.44 = 7,622.73 : x
  2. Step 2: Convert to fraction form
    20,770.23/31,159.44 = 7,622.73/x
  3. Step 3: Cross multiply
    20,770.23x = 31,159.44 × 7,622.73
  4. Step 4: Simplify right side
    20,770.23x = 237,519,998.07
  5. Step 5: Solve for x
    x = 237,519,998.07/20,770.23
  6. Step 6: Final answer
    x = 11,435.60

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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.