Home / 43,972.57-65,958.15-13,986.38

Finding the Fourth Proportional to 43,972.57, 65,958.15 and 13,986.38

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Solution

The fourth proportional to 43,972.57, 65,958.15 and 13,986.38 is: 20,979.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,972.57 : 65,958.15 = 13,986.38 : x
  2. Step 2: Convert to fraction form
    43,972.57/65,958.15 = 13,986.38/x
  3. Step 3: Cross multiply
    43,972.57x = 65,958.15 × 13,986.38
  4. Step 4: Simplify right side
    43,972.57x = 922,515,420.21
  5. Step 5: Solve for x
    x = 922,515,420.21/43,972.57
  6. Step 6: Final answer
    x = 20,979.34

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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.