Home / 20,141.58-27,797.56-12,188.18

Finding the Fourth Proportional to 20,141.58, 27,797.56 and 12,188.18

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Solution

The fourth proportional to 20,141.58, 27,797.56 and 12,188.18 is: 16,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.58 : 27,797.56 = 12,188.18 : x
  2. Step 2: Convert to fraction form
    20,141.58/27,797.56 = 12,188.18/x
  3. Step 3: Cross multiply
    20,141.58x = 27,797.56 × 12,188.18
  4. Step 4: Simplify right side
    20,141.58x = 338,801,664.84
  5. Step 5: Solve for x
    x = 338,801,664.84/20,141.58
  6. Step 6: Final answer
    x = 16,821.01

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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.