Home / 20,694.94-28,558.88-11,263.51

Finding the Fourth Proportional to 20,694.94, 28,558.88 and 11,263.51

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Solution

The fourth proportional to 20,694.94, 28,558.88 and 11,263.51 is: 15,543.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.94 : 28,558.88 = 11,263.51 : x
  2. Step 2: Convert to fraction form
    20,694.94/28,558.88 = 11,263.51/x
  3. Step 3: Cross multiply
    20,694.94x = 28,558.88 × 11,263.51
  4. Step 4: Simplify right side
    20,694.94x = 321,673,091.44
  5. Step 5: Solve for x
    x = 321,673,091.44/20,694.94
  6. Step 6: Final answer
    x = 15,543.56

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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.