Home / 33,215.25-49,792.86-12,140.43

Finding the Fourth Proportional to 33,215.25, 49,792.86 and 12,140.43

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Solution

The fourth proportional to 33,215.25, 49,792.86 and 12,140.43 is: 18,199.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,215.25 : 49,792.86 = 12,140.43 : x
  2. Step 2: Convert to fraction form
    33,215.25/49,792.86 = 12,140.43/x
  3. Step 3: Cross multiply
    33,215.25x = 49,792.86 × 12,140.43
  4. Step 4: Simplify right side
    33,215.25x = 604,506,731.33
  5. Step 5: Solve for x
    x = 604,506,731.33/33,215.25
  6. Step 6: Final answer
    x = 18,199.67

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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.