Home / 28,865.36-43,299.72-8,090.48

Finding the Fourth Proportional to 28,865.36, 43,299.72 and 8,090.48

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Solution

The fourth proportional to 28,865.36, 43,299.72 and 8,090.48 is: 12,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.36 : 43,299.72 = 8,090.48 : x
  2. Step 2: Convert to fraction form
    28,865.36/43,299.72 = 8,090.48/x
  3. Step 3: Cross multiply
    28,865.36x = 43,299.72 × 8,090.48
  4. Step 4: Simplify right side
    28,865.36x = 350,315,518.67
  5. Step 5: Solve for x
    x = 350,315,518.67/28,865.36
  6. Step 6: Final answer
    x = 12,136.19

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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.