Home / 28,057.03-42,078.34-8,331.01

Finding the Fourth Proportional to 28,057.03, 42,078.34 and 8,331.01

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Solution

The fourth proportional to 28,057.03, 42,078.34 and 8,331.01 is: 12,494.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,057.03 : 42,078.34 = 8,331.01 : x
  2. Step 2: Convert to fraction form
    28,057.03/42,078.34 = 8,331.01/x
  3. Step 3: Cross multiply
    28,057.03x = 42,078.34 × 8,331.01
  4. Step 4: Simplify right side
    28,057.03x = 350,554,976.54
  5. Step 5: Solve for x
    x = 350,554,976.54/28,057.03
  6. Step 6: Final answer
    x = 12,494.37

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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.