Home / 28,081.94-42,122.09-11,437.85

Finding the Fourth Proportional to 28,081.94, 42,122.09 and 11,437.85

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Solution

The fourth proportional to 28,081.94, 42,122.09 and 11,437.85 is: 17,156.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.94 : 42,122.09 = 11,437.85 : x
  2. Step 2: Convert to fraction form
    28,081.94/42,122.09 = 11,437.85/x
  3. Step 3: Cross multiply
    28,081.94x = 42,122.09 × 11,437.85
  4. Step 4: Simplify right side
    28,081.94x = 481,786,147.11
  5. Step 5: Solve for x
    x = 481,786,147.11/28,081.94
  6. Step 6: Final answer
    x = 17,156.44

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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.