Home / 20,796.83-28,699.84-11,365.39

Finding the Fourth Proportional to 20,796.83, 28,699.84 and 11,365.39

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Solution

The fourth proportional to 20,796.83, 28,699.84 and 11,365.39 is: 15,684.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.83 : 28,699.84 = 11,365.39 : x
  2. Step 2: Convert to fraction form
    20,796.83/28,699.84 = 11,365.39/x
  3. Step 3: Cross multiply
    20,796.83x = 28,699.84 × 11,365.39
  4. Step 4: Simplify right side
    20,796.83x = 326,184,860.69
  5. Step 5: Solve for x
    x = 326,184,860.69/20,796.83
  6. Step 6: Final answer
    x = 15,684.36

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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.