Home / 20,949.27-28,880.24-16,662.75

Finding the Fourth Proportional to 20,949.27, 28,880.24 and 16,662.75

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Solution

The fourth proportional to 20,949.27, 28,880.24 and 16,662.75 is: 22,970.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,949.27 : 28,880.24 = 16,662.75 : x
  2. Step 2: Convert to fraction form
    20,949.27/28,880.24 = 16,662.75/x
  3. Step 3: Cross multiply
    20,949.27x = 28,880.24 × 16,662.75
  4. Step 4: Simplify right side
    20,949.27x = 481,224,219.06
  5. Step 5: Solve for x
    x = 481,224,219.06/20,949.27
  6. Step 6: Final answer
    x = 22,970.93

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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.