Home / 28,940.90-43,418.23-9,219.42

Finding the Fourth Proportional to 28,940.90, 43,418.23 and 9,219.42

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Solution

The fourth proportional to 28,940.90, 43,418.23 and 9,219.42 is: 13,831.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,940.90 : 43,418.23 = 9,219.42 : x
  2. Step 2: Convert to fraction form
    28,940.90/43,418.23 = 9,219.42/x
  3. Step 3: Cross multiply
    28,940.90x = 43,418.23 × 9,219.42
  4. Step 4: Simplify right side
    28,940.90x = 400,290,874.98
  5. Step 5: Solve for x
    x = 400,290,874.98/28,940.90
  6. Step 6: Final answer
    x = 13,831.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.