Home / 20,713.75-31,012.73-11,191.96

Finding the Fourth Proportional to 20,713.75, 31,012.73 and 11,191.96

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Solution

The fourth proportional to 20,713.75, 31,012.73 and 11,191.96 is: 16,756.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.75 : 31,012.73 = 11,191.96 : x
  2. Step 2: Convert to fraction form
    20,713.75/31,012.73 = 11,191.96/x
  3. Step 3: Cross multiply
    20,713.75x = 31,012.73 × 11,191.96
  4. Step 4: Simplify right side
    20,713.75x = 347,093,261.63
  5. Step 5: Solve for x
    x = 347,093,261.63/20,713.75
  6. Step 6: Final answer
    x = 16,756.66

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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.