Home / 20,112.78-30,168.84-6,072.24

Finding the Fourth Proportional to 20,112.78, 30,168.84 and 6,072.24

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Solution

The fourth proportional to 20,112.78, 30,168.84 and 6,072.24 is: 9,108.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.78 : 30,168.84 = 6,072.24 : x
  2. Step 2: Convert to fraction form
    20,112.78/30,168.84 = 6,072.24/x
  3. Step 3: Cross multiply
    20,112.78x = 30,168.84 × 6,072.24
  4. Step 4: Simplify right side
    20,112.78x = 183,192,437.00
  5. Step 5: Solve for x
    x = 183,192,437.00/20,112.78
  6. Step 6: Final answer
    x = 9,108.26

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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.