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Finding the Fourth Proportional to 31,447.44, 43,403.04 and 18,873

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Solution

The fourth proportional to 31,447.44, 43,403.04 and 18,873 is: 26,048.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,447.44 : 43,403.04 = 18,873 : x
  2. Step 2: Convert to fraction form
    31,447.44/43,403.04 = 18,873/x
  3. Step 3: Cross multiply
    31,447.44x = 43,403.04 × 18,873
  4. Step 4: Simplify right side
    31,447.44x = 819,145,573.92
  5. Step 5: Solve for x
    x = 819,145,573.92/31,447.44
  6. Step 6: Final answer
    x = 26,048.08

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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.