Home / 31,696.08-43,749.32-18,958.02

Finding the Fourth Proportional to 31,696.08, 43,749.32 and 18,958.02

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Solution

The fourth proportional to 31,696.08, 43,749.32 and 18,958.02 is: 26,167.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,696.08 : 43,749.32 = 18,958.02 : x
  2. Step 2: Convert to fraction form
    31,696.08/43,749.32 = 18,958.02/x
  3. Step 3: Cross multiply
    31,696.08x = 43,749.32 × 18,958.02
  4. Step 4: Simplify right side
    31,696.08x = 829,400,224.70
  5. Step 5: Solve for x
    x = 829,400,224.70/31,696.08
  6. Step 6: Final answer
    x = 26,167.28

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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.