Home / 22,185.05-30,615.17-12,113.44

Finding the Fourth Proportional to 22,185.05, 30,615.17 and 12,113.44

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Solution

The fourth proportional to 22,185.05, 30,615.17 and 12,113.44 is: 16,716.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,185.05 : 30,615.17 = 12,113.44 : x
  2. Step 2: Convert to fraction form
    22,185.05/30,615.17 = 12,113.44/x
  3. Step 3: Cross multiply
    22,185.05x = 30,615.17 × 12,113.44
  4. Step 4: Simplify right side
    22,185.05x = 370,855,024.88
  5. Step 5: Solve for x
    x = 370,855,024.88/22,185.05
  6. Step 6: Final answer
    x = 16,716.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.