Home / 20,844.67-28,765.42-11,284.34

Finding the Fourth Proportional to 20,844.67, 28,765.42 and 11,284.34

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Solution

The fourth proportional to 20,844.67, 28,765.42 and 11,284.34 is: 15,572.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.67 : 28,765.42 = 11,284.34 : x
  2. Step 2: Convert to fraction form
    20,844.67/28,765.42 = 11,284.34/x
  3. Step 3: Cross multiply
    20,844.67x = 28,765.42 × 11,284.34
  4. Step 4: Simplify right side
    20,844.67x = 324,598,807.73
  5. Step 5: Solve for x
    x = 324,598,807.73/20,844.67
  6. Step 6: Final answer
    x = 15,572.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.