Home / 28,821.33-43,176.06-18,930.60

Finding the Fourth Proportional to 28,821.33, 43,176.06 and 18,930.60

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Solution

The fourth proportional to 28,821.33, 43,176.06 and 18,930.60 is: 28,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.33 : 43,176.06 = 18,930.60 : x
  2. Step 2: Convert to fraction form
    28,821.33/43,176.06 = 18,930.60/x
  3. Step 3: Cross multiply
    28,821.33x = 43,176.06 × 18,930.60
  4. Step 4: Simplify right side
    28,821.33x = 817,348,721.44
  5. Step 5: Solve for x
    x = 817,348,721.44/28,821.33
  6. Step 6: Final answer
    x = 28,359.16

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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.