Home / 28,627.45-42,945.76-8,910.56

Finding the Fourth Proportional to 28,627.45, 42,945.76 and 8,910.56

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Solution

The fourth proportional to 28,627.45, 42,945.76 and 8,910.56 is: 13,367.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,627.45 : 42,945.76 = 8,910.56 : x
  2. Step 2: Convert to fraction form
    28,627.45/42,945.76 = 8,910.56/x
  3. Step 3: Cross multiply
    28,627.45x = 42,945.76 × 8,910.56
  4. Step 4: Simplify right side
    28,627.45x = 382,670,771.23
  5. Step 5: Solve for x
    x = 382,670,771.23/28,627.45
  6. Step 6: Final answer
    x = 13,367.27

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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.