Home / 20,948.73-28,907.73-12,450.48

Finding the Fourth Proportional to 20,948.73, 28,907.73 and 12,450.48

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Solution

The fourth proportional to 20,948.73, 28,907.73 and 12,450.48 is: 17,180.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,948.73 : 28,907.73 = 12,450.48 : x
  2. Step 2: Convert to fraction form
    20,948.73/28,907.73 = 12,450.48/x
  3. Step 3: Cross multiply
    20,948.73x = 28,907.73 × 12,450.48
  4. Step 4: Simplify right side
    20,948.73x = 359,915,114.21
  5. Step 5: Solve for x
    x = 359,915,114.21/20,948.73
  6. Step 6: Final answer
    x = 17,180.76

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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.