Home / 43,975.23-65,972.70-13,991.19

Finding the Fourth Proportional to 43,975.23, 65,972.70 and 13,991.19

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Solution

The fourth proportional to 43,975.23, 65,972.70 and 13,991.19 is: 20,989.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,975.23 : 65,972.70 = 13,991.19 : x
  2. Step 2: Convert to fraction form
    43,975.23/65,972.70 = 13,991.19/x
  3. Step 3: Cross multiply
    43,975.23x = 65,972.70 × 13,991.19
  4. Step 4: Simplify right side
    43,975.23x = 923,036,580.51
  5. Step 5: Solve for x
    x = 923,036,580.51/43,975.23
  6. Step 6: Final answer
    x = 20,989.92

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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.