Home / 18,815.48-28,220.91-10,922.29

Finding the Fourth Proportional to 18,815.48, 28,220.91 and 10,922.29

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Solution

The fourth proportional to 18,815.48, 28,220.91 and 10,922.29 is: 16,382.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.48 : 28,220.91 = 10,922.29 : x
  2. Step 2: Convert to fraction form
    18,815.48/28,220.91 = 10,922.29/x
  3. Step 3: Cross multiply
    18,815.48x = 28,220.91 × 10,922.29
  4. Step 4: Simplify right side
    18,815.48x = 308,236,821.98
  5. Step 5: Solve for x
    x = 308,236,821.98/18,815.48
  6. Step 6: Final answer
    x = 16,382.09

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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.