Home / 19,705.40-27,169.26-12,240.44

Finding the Fourth Proportional to 19,705.40, 27,169.26 and 12,240.44

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Solution

The fourth proportional to 19,705.40, 27,169.26 and 12,240.44 is: 16,876.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,705.40 : 27,169.26 = 12,240.44 : x
  2. Step 2: Convert to fraction form
    19,705.40/27,169.26 = 12,240.44/x
  3. Step 3: Cross multiply
    19,705.40x = 27,169.26 × 12,240.44
  4. Step 4: Simplify right side
    19,705.40x = 332,563,696.87
  5. Step 5: Solve for x
    x = 332,563,696.87/19,705.40
  6. Step 6: Final answer
    x = 16,876.78

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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.