Home / 28,091.34-42,144.84-8,370.54

Finding the Fourth Proportional to 28,091.34, 42,144.84 and 8,370.54

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Solution

The fourth proportional to 28,091.34, 42,144.84 and 8,370.54 is: 12,558.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.34 : 42,144.84 = 8,370.54 : x
  2. Step 2: Convert to fraction form
    28,091.34/42,144.84 = 8,370.54/x
  3. Step 3: Cross multiply
    28,091.34x = 42,144.84 × 8,370.54
  4. Step 4: Simplify right side
    28,091.34x = 352,775,069.01
  5. Step 5: Solve for x
    x = 352,775,069.01/28,091.34
  6. Step 6: Final answer
    x = 12,558.14

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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.