Home / 28,085.09-42,115.97-11,433.83

Finding the Fourth Proportional to 28,085.09, 42,115.97 and 11,433.83

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Solution

The fourth proportional to 28,085.09, 42,115.97 and 11,433.83 is: 17,145.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.09 : 42,115.97 = 11,433.83 : x
  2. Step 2: Convert to fraction form
    28,085.09/42,115.97 = 11,433.83/x
  3. Step 3: Cross multiply
    28,085.09x = 42,115.97 × 11,433.83
  4. Step 4: Simplify right side
    28,085.09x = 481,546,659.27
  5. Step 5: Solve for x
    x = 481,546,659.27/28,085.09
  6. Step 6: Final answer
    x = 17,145.99

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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.