Home / 20,074.36-27,701.06-11,121.16

Finding the Fourth Proportional to 20,074.36, 27,701.06 and 11,121.16

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Solution

The fourth proportional to 20,074.36, 27,701.06 and 11,121.16 is: 15,346.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.36 : 27,701.06 = 11,121.16 : x
  2. Step 2: Convert to fraction form
    20,074.36/27,701.06 = 11,121.16/x
  3. Step 3: Cross multiply
    20,074.36x = 27,701.06 × 11,121.16
  4. Step 4: Simplify right side
    20,074.36x = 308,067,920.43
  5. Step 5: Solve for x
    x = 308,067,920.43/20,074.36
  6. Step 6: Final answer
    x = 15,346.34

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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.