Home / 20,814.03-31,213.22-6,770.39

Finding the Fourth Proportional to 20,814.03, 31,213.22 and 6,770.39

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Solution

The fourth proportional to 20,814.03, 31,213.22 and 6,770.39 is: 10,153.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,814.03 : 31,213.22 = 6,770.39 : x
  2. Step 2: Convert to fraction form
    20,814.03/31,213.22 = 6,770.39/x
  3. Step 3: Cross multiply
    20,814.03x = 31,213.22 × 6,770.39
  4. Step 4: Simplify right side
    20,814.03x = 211,325,482.64
  5. Step 5: Solve for x
    x = 211,325,482.64/20,814.03
  6. Step 6: Final answer
    x = 10,153.03

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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.