Home / 20,696.97-28,559.48-11,742.15

Finding the Fourth Proportional to 20,696.97, 28,559.48 and 11,742.15

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Solution

The fourth proportional to 20,696.97, 28,559.48 and 11,742.15 is: 16,202.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.97 : 28,559.48 = 11,742.15 : x
  2. Step 2: Convert to fraction form
    20,696.97/28,559.48 = 11,742.15/x
  3. Step 3: Cross multiply
    20,696.97x = 28,559.48 × 11,742.15
  4. Step 4: Simplify right side
    20,696.97x = 335,349,639.37
  5. Step 5: Solve for x
    x = 335,349,639.37/20,696.97
  6. Step 6: Final answer
    x = 16,202.84

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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.