Home / 43,584.20-65,378.35-13,618.88

Finding the Fourth Proportional to 43,584.20, 65,378.35 and 13,618.88

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Solution

The fourth proportional to 43,584.20, 65,378.35 and 13,618.88 is: 20,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,584.20 : 65,378.35 = 13,618.88 : x
  2. Step 2: Convert to fraction form
    43,584.20/65,378.35 = 13,618.88/x
  3. Step 3: Cross multiply
    43,584.20x = 65,378.35 × 13,618.88
  4. Step 4: Simplify right side
    43,584.20x = 890,379,903.25
  5. Step 5: Solve for x
    x = 890,379,903.25/43,584.20
  6. Step 6: Final answer
    x = 20,428.96

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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.