Home / 43,879.79-65,825.19-14,289.68

Finding the Fourth Proportional to 43,879.79, 65,825.19 and 14,289.68

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Solution

The fourth proportional to 43,879.79, 65,825.19 and 14,289.68 is: 21,436.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,879.79 : 65,825.19 = 14,289.68 : x
  2. Step 2: Convert to fraction form
    43,879.79/65,825.19 = 14,289.68/x
  3. Step 3: Cross multiply
    43,879.79x = 65,825.19 × 14,289.68
  4. Step 4: Simplify right side
    43,879.79x = 940,621,065.60
  5. Step 5: Solve for x
    x = 940,621,065.60/43,879.79
  6. Step 6: Final answer
    x = 21,436.32

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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.