Home / 28,194.54-42,288.13-10,662.09

Finding the Fourth Proportional to 28,194.54, 42,288.13 and 10,662.09

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Solution

The fourth proportional to 28,194.54, 42,288.13 and 10,662.09 is: 15,991.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.54 : 42,288.13 = 10,662.09 : x
  2. Step 2: Convert to fraction form
    28,194.54/42,288.13 = 10,662.09/x
  3. Step 3: Cross multiply
    28,194.54x = 42,288.13 × 10,662.09
  4. Step 4: Simplify right side
    28,194.54x = 450,879,847.99
  5. Step 5: Solve for x
    x = 450,879,847.99/28,194.54
  6. Step 6: Final answer
    x = 15,991.74

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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.