Home / 20,713.56-28,584.80-11,761.26

Finding the Fourth Proportional to 20,713.56, 28,584.80 and 11,761.26

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Solution

The fourth proportional to 20,713.56, 28,584.80 and 11,761.26 is: 16,230.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.56 : 28,584.80 = 11,761.26 : x
  2. Step 2: Convert to fraction form
    20,713.56/28,584.80 = 11,761.26/x
  3. Step 3: Cross multiply
    20,713.56x = 28,584.80 × 11,761.26
  4. Step 4: Simplify right side
    20,713.56x = 336,193,264.85
  5. Step 5: Solve for x
    x = 336,193,264.85/20,713.56
  6. Step 6: Final answer
    x = 16,230.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.