Home / 19,895.44-27,450.74-12,813.34

Finding the Fourth Proportional to 19,895.44, 27,450.74 and 12,813.34

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Solution

The fourth proportional to 19,895.44, 27,450.74 and 12,813.34 is: 17,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,895.44 : 27,450.74 = 12,813.34 : x
  2. Step 2: Convert to fraction form
    19,895.44/27,450.74 = 12,813.34/x
  3. Step 3: Cross multiply
    19,895.44x = 27,450.74 × 12,813.34
  4. Step 4: Simplify right side
    19,895.44x = 351,735,664.87
  5. Step 5: Solve for x
    x = 351,735,664.87/19,895.44
  6. Step 6: Final answer
    x = 17,679.21

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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.