Home / 31,243.12-43,112.48-17,813.36

Finding the Fourth Proportional to 31,243.12, 43,112.48 and 17,813.36

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Solution

The fourth proportional to 31,243.12, 43,112.48 and 17,813.36 is: 24,580.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,243.12 : 43,112.48 = 17,813.36 : x
  2. Step 2: Convert to fraction form
    31,243.12/43,112.48 = 17,813.36/x
  3. Step 3: Cross multiply
    31,243.12x = 43,112.48 × 17,813.36
  4. Step 4: Simplify right side
    31,243.12x = 767,978,126.73
  5. Step 5: Solve for x
    x = 767,978,126.73/31,243.12
  6. Step 6: Final answer
    x = 24,580.71

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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.