Home / 15,986.58-23,979.83-4,299.81

Finding the Fourth Proportional to 15,986.58, 23,979.83 and 4,299.81

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Solution

The fourth proportional to 15,986.58, 23,979.83 and 4,299.81 is: 6,449.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.58 : 23,979.83 = 4,299.81 : x
  2. Step 2: Convert to fraction form
    15,986.58/23,979.83 = 4,299.81/x
  3. Step 3: Cross multiply
    15,986.58x = 23,979.83 × 4,299.81
  4. Step 4: Simplify right side
    15,986.58x = 103,108,571.43
  5. Step 5: Solve for x
    x = 103,108,571.43/15,986.58
  6. Step 6: Final answer
    x = 6,449.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.