Home / 28,137.62-42,190.84-11,509.33

Finding the Fourth Proportional to 28,137.62, 42,190.84 and 11,509.33

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Solution

The fourth proportional to 28,137.62, 42,190.84 and 11,509.33 is: 17,257.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,137.62 : 42,190.84 = 11,509.33 : x
  2. Step 2: Convert to fraction form
    28,137.62/42,190.84 = 11,509.33/x
  3. Step 3: Cross multiply
    28,137.62x = 42,190.84 × 11,509.33
  4. Step 4: Simplify right side
    28,137.62x = 485,588,300.54
  5. Step 5: Solve for x
    x = 485,588,300.54/28,137.62
  6. Step 6: Final answer
    x = 17,257.62

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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.