Home / 28,072.62-42,111.24-8,351.22

Finding the Fourth Proportional to 28,072.62, 42,111.24 and 8,351.22

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Solution

The fourth proportional to 28,072.62, 42,111.24 and 8,351.22 is: 12,527.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.62 : 42,111.24 = 8,351.22 : x
  2. Step 2: Convert to fraction form
    28,072.62/42,111.24 = 8,351.22/x
  3. Step 3: Cross multiply
    28,072.62x = 42,111.24 × 8,351.22
  4. Step 4: Simplify right side
    28,072.62x = 351,680,229.71
  5. Step 5: Solve for x
    x = 351,680,229.71/28,072.62
  6. Step 6: Final answer
    x = 12,527.52

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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.