Home / 20,195.44-27,870.98-12,238.36

Finding the Fourth Proportional to 20,195.44, 27,870.98 and 12,238.36

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Solution

The fourth proportional to 20,195.44, 27,870.98 and 12,238.36 is: 16,889.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.44 : 27,870.98 = 12,238.36 : x
  2. Step 2: Convert to fraction form
    20,195.44/27,870.98 = 12,238.36/x
  3. Step 3: Cross multiply
    20,195.44x = 27,870.98 × 12,238.36
  4. Step 4: Simplify right side
    20,195.44x = 341,095,086.79
  5. Step 5: Solve for x
    x = 341,095,086.79/20,195.44
  6. Step 6: Final answer
    x = 16,889.71

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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.