Home / 19,048.20-28,529.10-12,049.80

Finding the Fourth Proportional to 19,048.20, 28,529.10 and 12,049.80

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Solution

The fourth proportional to 19,048.20, 28,529.10 and 12,049.80 is: 18,047.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,048.20 : 28,529.10 = 12,049.80 : x
  2. Step 2: Convert to fraction form
    19,048.20/28,529.10 = 12,049.80/x
  3. Step 3: Cross multiply
    19,048.20x = 28,529.10 × 12,049.80
  4. Step 4: Simplify right side
    19,048.20x = 343,769,949.18
  5. Step 5: Solve for x
    x = 343,769,949.18/19,048.20
  6. Step 6: Final answer
    x = 18,047.37

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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.