Home / 45,293.74-67,914.69-18,976.30

Finding the Fourth Proportional to 45,293.74, 67,914.69 and 18,976.30

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Solution

The fourth proportional to 45,293.74, 67,914.69 and 18,976.30 is: 28,453.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,293.74 : 67,914.69 = 18,976.30 : x
  2. Step 2: Convert to fraction form
    45,293.74/67,914.69 = 18,976.30/x
  3. Step 3: Cross multiply
    45,293.74x = 67,914.69 × 18,976.30
  4. Step 4: Simplify right side
    45,293.74x = 1,288,769,531.85
  5. Step 5: Solve for x
    x = 1,288,769,531.85/45,293.74
  6. Step 6: Final answer
    x = 28,453.59

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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.