Home / 20,054.54-30,111.37-11,187.19

Finding the Fourth Proportional to 20,054.54, 30,111.37 and 11,187.19

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Solution

The fourth proportional to 20,054.54, 30,111.37 and 11,187.19 is: 16,797.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,054.54 : 30,111.37 = 11,187.19 : x
  2. Step 2: Convert to fraction form
    20,054.54/30,111.37 = 11,187.19/x
  3. Step 3: Cross multiply
    20,054.54x = 30,111.37 × 11,187.19
  4. Step 4: Simplify right side
    20,054.54x = 336,861,410.86
  5. Step 5: Solve for x
    x = 336,861,410.86/20,054.54
  6. Step 6: Final answer
    x = 16,797.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.