Home / 20,504.12-28,295.07-11,551.43

Finding the Fourth Proportional to 20,504.12, 28,295.07 and 11,551.43

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Solution

The fourth proportional to 20,504.12, 28,295.07 and 11,551.43 is: 15,940.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.12 : 28,295.07 = 11,551.43 : x
  2. Step 2: Convert to fraction form
    20,504.12/28,295.07 = 11,551.43/x
  3. Step 3: Cross multiply
    20,504.12x = 28,295.07 × 11,551.43
  4. Step 4: Simplify right side
    20,504.12x = 326,848,321.22
  5. Step 5: Solve for x
    x = 326,848,321.22/20,504.12
  6. Step 6: Final answer
    x = 15,940.62

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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.