Home / 20,795.58-28,699.56-11,845.86

Finding the Fourth Proportional to 20,795.58, 28,699.56 and 11,845.86

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Solution

The fourth proportional to 20,795.58, 28,699.56 and 11,845.86 is: 16,348.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.58 : 28,699.56 = 11,845.86 : x
  2. Step 2: Convert to fraction form
    20,795.58/28,699.56 = 11,845.86/x
  3. Step 3: Cross multiply
    20,795.58x = 28,699.56 × 11,845.86
  4. Step 4: Simplify right side
    20,795.58x = 339,970,969.82
  5. Step 5: Solve for x
    x = 339,970,969.82/20,795.58
  6. Step 6: Final answer
    x = 16,348.23

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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.