Home / 20,450.82-30,492.09-19,940.52

Finding the Fourth Proportional to 20,450.82, 30,492.09 and 19,940.52

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Solution

The fourth proportional to 20,450.82, 30,492.09 and 19,940.52 is: 29,731.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.82 : 30,492.09 = 19,940.52 : x
  2. Step 2: Convert to fraction form
    20,450.82/30,492.09 = 19,940.52/x
  3. Step 3: Cross multiply
    20,450.82x = 30,492.09 × 19,940.52
  4. Step 4: Simplify right side
    20,450.82x = 608,028,130.49
  5. Step 5: Solve for x
    x = 608,028,130.49/20,450.82
  6. Step 6: Final answer
    x = 29,731.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.