Home / 22,199.67-30,636.47-12,768.24

Finding the Fourth Proportional to 22,199.67, 30,636.47 and 12,768.24

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Solution

The fourth proportional to 22,199.67, 30,636.47 and 12,768.24 is: 17,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,199.67 : 30,636.47 = 12,768.24 : x
  2. Step 2: Convert to fraction form
    22,199.67/30,636.47 = 12,768.24/x
  3. Step 3: Cross multiply
    22,199.67x = 30,636.47 × 12,768.24
  4. Step 4: Simplify right side
    22,199.67x = 391,173,737.87
  5. Step 5: Solve for x
    x = 391,173,737.87/22,199.67
  6. Step 6: Final answer
    x = 17,620.70

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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.