Home / 20,954.97-28,917.86-11,523.53

Finding the Fourth Proportional to 20,954.97, 28,917.86 and 11,523.53

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Solution

The fourth proportional to 20,954.97, 28,917.86 and 11,523.53 is: 15,902.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.97 : 28,917.86 = 11,523.53 : x
  2. Step 2: Convert to fraction form
    20,954.97/28,917.86 = 11,523.53/x
  3. Step 3: Cross multiply
    20,954.97x = 28,917.86 × 11,523.53
  4. Step 4: Simplify right side
    20,954.97x = 333,235,682.66
  5. Step 5: Solve for x
    x = 333,235,682.66/20,954.97
  6. Step 6: Final answer
    x = 15,902.47

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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.