Home / 43,911.37-65,811.89-18,922.16

Finding the Fourth Proportional to 43,911.37, 65,811.89 and 18,922.16

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Solution

The fourth proportional to 43,911.37, 65,811.89 and 18,922.16 is: 28,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,911.37 : 65,811.89 = 18,922.16 : x
  2. Step 2: Convert to fraction form
    43,911.37/65,811.89 = 18,922.16/x
  3. Step 3: Cross multiply
    43,911.37x = 65,811.89 × 18,922.16
  4. Step 4: Simplify right side
    43,911.37x = 1,245,302,954.13
  5. Step 5: Solve for x
    x = 1,245,302,954.13/43,911.37
  6. Step 6: Final answer
    x = 28,359.47

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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.