Home / 43,487.45-65,249.75-18,539.25

Finding the Fourth Proportional to 43,487.45, 65,249.75 and 18,539.25

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Solution

The fourth proportional to 43,487.45, 65,249.75 and 18,539.25 is: 27,816.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,487.45 : 65,249.75 = 18,539.25 : x
  2. Step 2: Convert to fraction form
    43,487.45/65,249.75 = 18,539.25/x
  3. Step 3: Cross multiply
    43,487.45x = 65,249.75 × 18,539.25
  4. Step 4: Simplify right side
    43,487.45x = 1,209,681,334.99
  5. Step 5: Solve for x
    x = 1,209,681,334.99/43,487.45
  6. Step 6: Final answer
    x = 27,816.79

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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.