Home / 21,883.17-30,198.51-12,451.71

Finding the Fourth Proportional to 21,883.17, 30,198.51 and 12,451.71

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Solution

The fourth proportional to 21,883.17, 30,198.51 and 12,451.71 is: 17,183.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,883.17 : 30,198.51 = 12,451.71 : x
  2. Step 2: Convert to fraction form
    21,883.17/30,198.51 = 12,451.71/x
  3. Step 3: Cross multiply
    21,883.17x = 30,198.51 × 12,451.71
  4. Step 4: Simplify right side
    21,883.17x = 376,023,088.95
  5. Step 5: Solve for x
    x = 376,023,088.95/21,883.17
  6. Step 6: Final answer
    x = 17,183.21

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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.