Home / 28,662.46-42,991.56-8,940.38

Finding the Fourth Proportional to 28,662.46, 42,991.56 and 8,940.38

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Solution

The fourth proportional to 28,662.46, 42,991.56 and 8,940.38 is: 13,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662.46 : 42,991.56 = 8,940.38 : x
  2. Step 2: Convert to fraction form
    28,662.46/42,991.56 = 8,940.38/x
  3. Step 3: Cross multiply
    28,662.46x = 42,991.56 × 8,940.38
  4. Step 4: Simplify right side
    28,662.46x = 384,360,668.24
  5. Step 5: Solve for x
    x = 384,360,668.24/28,662.46
  6. Step 6: Final answer
    x = 13,409.90

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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.