Home / 20,944.44-31,322.16-18,618.12

Finding the Fourth Proportional to 20,944.44, 31,322.16 and 18,618.12

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Solution

The fourth proportional to 20,944.44, 31,322.16 and 18,618.12 is: 27,843.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.44 : 31,322.16 = 18,618.12 : x
  2. Step 2: Convert to fraction form
    20,944.44/31,322.16 = 18,618.12/x
  3. Step 3: Cross multiply
    20,944.44x = 31,322.16 × 18,618.12
  4. Step 4: Simplify right side
    20,944.44x = 583,159,733.54
  5. Step 5: Solve for x
    x = 583,159,733.54/20,944.44
  6. Step 6: Final answer
    x = 27,843.18

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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.