Home / 18,765.85-28,180.97-16,662.23

Finding the Fourth Proportional to 18,765.85, 28,180.97 and 16,662.23

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Solution

The fourth proportional to 18,765.85, 28,180.97 and 16,662.23 is: 25,021.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765.85 : 28,180.97 = 16,662.23 : x
  2. Step 2: Convert to fraction form
    18,765.85/28,180.97 = 16,662.23/x
  3. Step 3: Cross multiply
    18,765.85x = 28,180.97 × 16,662.23
  4. Step 4: Simplify right side
    18,765.85x = 469,557,803.76
  5. Step 5: Solve for x
    x = 469,557,803.76/18,765.85
  6. Step 6: Final answer
    x = 25,021.93

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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.