Home / 28,883.89-43,323.33-20,486.49

Finding the Fourth Proportional to 28,883.89, 43,323.33 and 20,486.49

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Solution

The fourth proportional to 28,883.89, 43,323.33 and 20,486.49 is: 30,727.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,883.89 : 43,323.33 = 20,486.49 : x
  2. Step 2: Convert to fraction form
    28,883.89/43,323.33 = 20,486.49/x
  3. Step 3: Cross multiply
    28,883.89x = 43,323.33 × 20,486.49
  4. Step 4: Simplify right side
    28,883.89x = 887,543,189.10
  5. Step 5: Solve for x
    x = 887,543,189.10/28,883.89
  6. Step 6: Final answer
    x = 30,727.96

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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.