Home / 20,704.95-28,571.94-11,273.58

Finding the Fourth Proportional to 20,704.95, 28,571.94 and 11,273.58

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Solution

The fourth proportional to 20,704.95, 28,571.94 and 11,273.58 is: 15,557.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.95 : 28,571.94 = 11,273.58 : x
  2. Step 2: Convert to fraction form
    20,704.95/28,571.94 = 11,273.58/x
  3. Step 3: Cross multiply
    20,704.95x = 28,571.94 × 11,273.58
  4. Step 4: Simplify right side
    20,704.95x = 322,108,051.35
  5. Step 5: Solve for x
    x = 322,108,051.35/20,704.95
  6. Step 6: Final answer
    x = 15,557.06

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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.