Home / 21,883.08-30,198.63-12,451.68

Finding the Fourth Proportional to 21,883.08, 30,198.63 and 12,451.68

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Solution

The fourth proportional to 21,883.08, 30,198.63 and 12,451.68 is: 17,183.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,883.08 : 30,198.63 = 12,451.68 : x
  2. Step 2: Convert to fraction form
    21,883.08/30,198.63 = 12,451.68/x
  3. Step 3: Cross multiply
    21,883.08x = 30,198.63 × 12,451.68
  4. Step 4: Simplify right side
    21,883.08x = 376,023,677.20
  5. Step 5: Solve for x
    x = 376,023,677.20/21,883.08
  6. Step 6: Final answer
    x = 17,183.31

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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.