Home / 31,757.88-43,815.80-18,327.36

Finding the Fourth Proportional to 31,757.88, 43,815.80 and 18,327.36

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Solution

The fourth proportional to 31,757.88, 43,815.80 and 18,327.36 is: 25,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,757.88 : 43,815.80 = 18,327.36 : x
  2. Step 2: Convert to fraction form
    31,757.88/43,815.80 = 18,327.36/x
  3. Step 3: Cross multiply
    31,757.88x = 43,815.80 × 18,327.36
  4. Step 4: Simplify right side
    31,757.88x = 803,027,940.29
  5. Step 5: Solve for x
    x = 803,027,940.29/31,757.88
  6. Step 6: Final answer
    x = 25,285.94

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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.