Home / 19,227.70-28,841.55-12,661.30

Finding the Fourth Proportional to 19,227.70, 28,841.55 and 12,661.30

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Solution

The fourth proportional to 19,227.70, 28,841.55 and 12,661.30 is: 18,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,227.70 : 28,841.55 = 12,661.30 : x
  2. Step 2: Convert to fraction form
    19,227.70/28,841.55 = 12,661.30/x
  3. Step 3: Cross multiply
    19,227.70x = 28,841.55 × 12,661.30
  4. Step 4: Simplify right side
    19,227.70x = 365,171,517.02
  5. Step 5: Solve for x
    x = 365,171,517.02/19,227.70
  6. Step 6: Final answer
    x = 18,991.95

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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.