Home / 15,979.96-23,971.38-4,292.92

Finding the Fourth Proportional to 15,979.96, 23,971.38 and 4,292.92

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Solution

The fourth proportional to 15,979.96, 23,971.38 and 4,292.92 is: 6,439.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.96 : 23,971.38 = 4,292.92 : x
  2. Step 2: Convert to fraction form
    15,979.96/23,971.38 = 4,292.92/x
  3. Step 3: Cross multiply
    15,979.96x = 23,971.38 × 4,292.92
  4. Step 4: Simplify right side
    15,979.96x = 102,907,216.63
  5. Step 5: Solve for x
    x = 102,907,216.63/15,979.96
  6. Step 6: Final answer
    x = 6,439.77

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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.