Home / 20,228.31-27,914.04-12,674.97

Finding the Fourth Proportional to 20,228.31, 27,914.04 and 12,674.97

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Solution

The fourth proportional to 20,228.31, 27,914.04 and 12,674.97 is: 17,490.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228.31 : 27,914.04 = 12,674.97 : x
  2. Step 2: Convert to fraction form
    20,228.31/27,914.04 = 12,674.97/x
  3. Step 3: Cross multiply
    20,228.31x = 27,914.04 × 12,674.97
  4. Step 4: Simplify right side
    20,228.31x = 353,809,619.58
  5. Step 5: Solve for x
    x = 353,809,619.58/20,228.31
  6. Step 6: Final answer
    x = 17,490.81

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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.