Home / 21,010.43-28,994.03-11,450.41

Finding the Fourth Proportional to 21,010.43, 28,994.03 and 11,450.41

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Solution

The fourth proportional to 21,010.43, 28,994.03 and 11,450.41 is: 15,801.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010.43 : 28,994.03 = 11,450.41 : x
  2. Step 2: Convert to fraction form
    21,010.43/28,994.03 = 11,450.41/x
  3. Step 3: Cross multiply
    21,010.43x = 28,994.03 × 11,450.41
  4. Step 4: Simplify right side
    21,010.43x = 331,993,401.32
  5. Step 5: Solve for x
    x = 331,993,401.32/21,010.43
  6. Step 6: Final answer
    x = 15,801.36

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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.