Home / 20,814.24-31,224.63-6,770.97

Finding the Fourth Proportional to 20,814.24, 31,224.63 and 6,770.97

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Solution

The fourth proportional to 20,814.24, 31,224.63 and 6,770.97 is: 10,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,814.24 : 31,224.63 = 6,770.97 : x
  2. Step 2: Convert to fraction form
    20,814.24/31,224.63 = 6,770.97/x
  3. Step 3: Cross multiply
    20,814.24x = 31,224.63 × 6,770.97
  4. Step 4: Simplify right side
    20,814.24x = 211,421,032.99
  5. Step 5: Solve for x
    x = 211,421,032.99/20,814.24
  6. Step 6: Final answer
    x = 10,157.52

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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.