Home / 31,788.65-43,867.98-18,359.87

Finding the Fourth Proportional to 31,788.65, 43,867.98 and 18,359.87

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Solution

The fourth proportional to 31,788.65, 43,867.98 and 18,359.87 is: 25,336.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788.65 : 43,867.98 = 18,359.87 : x
  2. Step 2: Convert to fraction form
    31,788.65/43,867.98 = 18,359.87/x
  3. Step 3: Cross multiply
    31,788.65x = 43,867.98 × 18,359.87
  4. Step 4: Simplify right side
    31,788.65x = 805,410,190.62
  5. Step 5: Solve for x
    x = 805,410,190.62/31,788.65
  6. Step 6: Final answer
    x = 25,336.41

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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.