Home / 43,318.22-64,979.64-13,738.41

Finding the Fourth Proportional to 43,318.22, 64,979.64 and 13,738.41

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Solution

The fourth proportional to 43,318.22, 64,979.64 and 13,738.41 is: 20,608.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,318.22 : 64,979.64 = 13,738.41 : x
  2. Step 2: Convert to fraction form
    43,318.22/64,979.64 = 13,738.41/x
  3. Step 3: Cross multiply
    43,318.22x = 64,979.64 × 13,738.41
  4. Step 4: Simplify right side
    43,318.22x = 892,716,935.97
  5. Step 5: Solve for x
    x = 892,716,935.97/43,318.22
  6. Step 6: Final answer
    x = 20,608.35

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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.