Home / 20,796.85-28,699.62-11,365.41

Finding the Fourth Proportional to 20,796.85, 28,699.62 and 11,365.41

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Solution

The fourth proportional to 20,796.85, 28,699.62 and 11,365.41 is: 15,684.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.85 : 28,699.62 = 11,365.41 : x
  2. Step 2: Convert to fraction form
    20,796.85/28,699.62 = 11,365.41/x
  3. Step 3: Cross multiply
    20,796.85x = 28,699.62 × 11,365.41
  4. Step 4: Simplify right side
    20,796.85x = 326,183,013.15
  5. Step 5: Solve for x
    x = 326,183,013.15/20,796.85
  6. Step 6: Final answer
    x = 15,684.25

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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.