Home / 20,098.82-27,742.08-12,141.56

Finding the Fourth Proportional to 20,098.82, 27,742.08 and 12,141.56

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Solution

The fourth proportional to 20,098.82, 27,742.08 and 12,141.56 is: 16,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,098.82 : 27,742.08 = 12,141.56 : x
  2. Step 2: Convert to fraction form
    20,098.82/27,742.08 = 12,141.56/x
  3. Step 3: Cross multiply
    20,098.82x = 27,742.08 × 12,141.56
  4. Step 4: Simplify right side
    20,098.82x = 336,832,128.84
  5. Step 5: Solve for x
    x = 336,832,128.84/20,098.82
  6. Step 6: Final answer
    x = 16,758.80

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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.