Home / 31,815.44-43,927.27-19,884.14

Finding the Fourth Proportional to 31,815.44, 43,927.27 and 19,884.14

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Solution

The fourth proportional to 31,815.44, 43,927.27 and 19,884.14 is: 27,453.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,815.44 : 43,927.27 = 19,884.14 : x
  2. Step 2: Convert to fraction form
    31,815.44/43,927.27 = 19,884.14/x
  3. Step 3: Cross multiply
    31,815.44x = 43,927.27 × 19,884.14
  4. Step 4: Simplify right side
    31,815.44x = 873,455,717.15
  5. Step 5: Solve for x
    x = 873,455,717.15/31,815.44
  6. Step 6: Final answer
    x = 27,453.84

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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.