Home / 22,721.21-34,091.63-8,685.49

Finding the Fourth Proportional to 22,721.21, 34,091.63 and 8,685.49

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Solution

The fourth proportional to 22,721.21, 34,091.63 and 8,685.49 is: 13,031.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,721.21 : 34,091.63 = 8,685.49 : x
  2. Step 2: Convert to fraction form
    22,721.21/34,091.63 = 8,685.49/x
  3. Step 3: Cross multiply
    22,721.21x = 34,091.63 × 8,685.49
  4. Step 4: Simplify right side
    22,721.21x = 296,102,511.45
  5. Step 5: Solve for x
    x = 296,102,511.45/22,721.21
  6. Step 6: Final answer
    x = 13,031.99

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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.