Home / 20,694.44-28,560.32-12,741.32

Finding the Fourth Proportional to 20,694.44, 28,560.32 and 12,741.32

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Solution

The fourth proportional to 20,694.44, 28,560.32 and 12,741.32 is: 17,584.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.44 : 28,560.32 = 12,741.32 : x
  2. Step 2: Convert to fraction form
    20,694.44/28,560.32 = 12,741.32/x
  3. Step 3: Cross multiply
    20,694.44x = 28,560.32 × 12,741.32
  4. Step 4: Simplify right side
    20,694.44x = 363,895,969.91
  5. Step 5: Solve for x
    x = 363,895,969.91/20,694.44
  6. Step 6: Final answer
    x = 17,584.24

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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.