Home / 20,694.26-28,558.64-12,741.01

Finding the Fourth Proportional to 20,694.26, 28,558.64 and 12,741.01

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Solution

The fourth proportional to 20,694.26, 28,558.64 and 12,741.01 is: 17,582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.26 : 28,558.64 = 12,741.01 : x
  2. Step 2: Convert to fraction form
    20,694.26/28,558.64 = 12,741.01/x
  3. Step 3: Cross multiply
    20,694.26x = 28,558.64 × 12,741.01
  4. Step 4: Simplify right side
    20,694.26x = 363,865,917.83
  5. Step 5: Solve for x
    x = 363,865,917.83/20,694.26
  6. Step 6: Final answer
    x = 17,582.94

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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.