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Finding the Fourth Proportional to 43,662.68, 65,439.26 and 18,673.39

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Solution

The fourth proportional to 43,662.68, 65,439.26 and 18,673.39 is: 27,986.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,662.68 : 65,439.26 = 18,673.39 : x
  2. Step 2: Convert to fraction form
    43,662.68/65,439.26 = 18,673.39/x
  3. Step 3: Cross multiply
    43,662.68x = 65,439.26 × 18,673.39
  4. Step 4: Simplify right side
    43,662.68x = 1,221,972,893.52
  5. Step 5: Solve for x
    x = 1,221,972,893.52/43,662.68
  6. Step 6: Final answer
    x = 27,986.67

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1.5x scale

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.