Home / 20,687.22-28,548.54-11,734.74

Finding the Fourth Proportional to 20,687.22, 28,548.54 and 11,734.74

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Solution

The fourth proportional to 20,687.22, 28,548.54 and 11,734.74 is: 16,194.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687.22 : 28,548.54 = 11,734.74 : x
  2. Step 2: Convert to fraction form
    20,687.22/28,548.54 = 11,734.74/x
  3. Step 3: Cross multiply
    20,687.22x = 28,548.54 × 11,734.74
  4. Step 4: Simplify right side
    20,687.22x = 335,009,694.28
  5. Step 5: Solve for x
    x = 335,009,694.28/20,687.22
  6. Step 6: Final answer
    x = 16,194.04

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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.