Home / 31,712.64-43,771.30-18,291.94

Finding the Fourth Proportional to 31,712.64, 43,771.30 and 18,291.94

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Solution

The fourth proportional to 31,712.64, 43,771.30 and 18,291.94 is: 25,247.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,712.64 : 43,771.30 = 18,291.94 : x
  2. Step 2: Convert to fraction form
    31,712.64/43,771.30 = 18,291.94/x
  3. Step 3: Cross multiply
    31,712.64x = 43,771.30 × 18,291.94
  4. Step 4: Simplify right side
    31,712.64x = 800,661,993.32
  5. Step 5: Solve for x
    x = 800,661,993.32/31,712.64
  6. Step 6: Final answer
    x = 25,247.41

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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.