Home / 45,231.57-67,847.53-18,917.85

Finding the Fourth Proportional to 45,231.57, 67,847.53 and 18,917.85

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Solution

The fourth proportional to 45,231.57, 67,847.53 and 18,917.85 is: 28,376.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,231.57 : 67,847.53 = 18,917.85 : x
  2. Step 2: Convert to fraction form
    45,231.57/67,847.53 = 18,917.85/x
  3. Step 3: Cross multiply
    45,231.57x = 67,847.53 × 18,917.85
  4. Step 4: Simplify right side
    45,231.57x = 1,283,529,395.41
  5. Step 5: Solve for x
    x = 1,283,529,395.41/45,231.57
  6. Step 6: Final answer
    x = 28,376.85

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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.