Home / 20,817.12-31,220.96-6,022.72

Finding the Fourth Proportional to 20,817.12, 31,220.96 and 6,022.72

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Solution

The fourth proportional to 20,817.12, 31,220.96 and 6,022.72 is: 9,032.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817.12 : 31,220.96 = 6,022.72 : x
  2. Step 2: Convert to fraction form
    20,817.12/31,220.96 = 6,022.72/x
  3. Step 3: Cross multiply
    20,817.12x = 31,220.96 × 6,022.72
  4. Step 4: Simplify right side
    20,817.12x = 188,035,100.21
  5. Step 5: Solve for x
    x = 188,035,100.21/20,817.12
  6. Step 6: Final answer
    x = 9,032.71

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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.