Home / 43,842.70-65,764.05-12,252.70

Finding the Fourth Proportional to 43,842.70, 65,764.05 and 12,252.70

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Solution

The fourth proportional to 43,842.70, 65,764.05 and 12,252.70 is: 18,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,842.70 : 65,764.05 = 12,252.70 : x
  2. Step 2: Convert to fraction form
    43,842.70/65,764.05 = 12,252.70/x
  3. Step 3: Cross multiply
    43,842.70x = 65,764.05 × 12,252.70
  4. Step 4: Simplify right side
    43,842.70x = 805,787,175.44
  5. Step 5: Solve for x
    x = 805,787,175.44/43,842.70
  6. Step 6: Final answer
    x = 18,379.05

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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.