Home / 28,072.92-42,109.35-8,351.43

Finding the Fourth Proportional to 28,072.92, 42,109.35 and 8,351.43

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Solution

The fourth proportional to 28,072.92, 42,109.35 and 8,351.43 is: 12,527.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.92 : 42,109.35 = 8,351.43 : x
  2. Step 2: Convert to fraction form
    28,072.92/42,109.35 = 8,351.43/x
  3. Step 3: Cross multiply
    28,072.92x = 42,109.35 × 8,351.43
  4. Step 4: Simplify right side
    28,072.92x = 351,673,288.87
  5. Step 5: Solve for x
    x = 351,673,288.87/28,072.92
  6. Step 6: Final answer
    x = 12,527.14

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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.