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Finding the Fourth Proportional to 43,969.81, 65,940.87 and 14,380.74

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Solution

The fourth proportional to 43,969.81, 65,940.87 and 14,380.74 is: 21,566.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,969.81 : 65,940.87 = 14,380.74 : x
  2. Step 2: Convert to fraction form
    43,969.81/65,940.87 = 14,380.74/x
  3. Step 3: Cross multiply
    43,969.81x = 65,940.87 × 14,380.74
  4. Step 4: Simplify right side
    43,969.81x = 948,278,205.64
  5. Step 5: Solve for x
    x = 948,278,205.64/43,969.81
  6. Step 6: Final answer
    x = 21,566.58

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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.