Home / 31,410-43,352.19-18,668.00

Finding the Fourth Proportional to 31,410, 43,352.19 and 18,668.00

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Solution

The fourth proportional to 31,410, 43,352.19 and 18,668.00 is: 25,765.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,410 : 43,352.19 = 18,668.00 : x
  2. Step 2: Convert to fraction form
    31,410/43,352.19 = 18,668.00/x
  3. Step 3: Cross multiply
    31,410x = 43,352.19 × 18,668.00
  4. Step 4: Simplify right side
    31,410x = 809,298,791.30
  5. Step 5: Solve for x
    x = 809,298,791.30/31,410
  6. Step 6: Final answer
    x = 25,765.64

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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.