Home / 21,765.26-30,037.32-12,204.68

Finding the Fourth Proportional to 21,765.26, 30,037.32 and 12,204.68

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Solution

The fourth proportional to 21,765.26, 30,037.32 and 12,204.68 is: 16,843.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765.26 : 30,037.32 = 12,204.68 : x
  2. Step 2: Convert to fraction form
    21,765.26/30,037.32 = 12,204.68/x
  3. Step 3: Cross multiply
    21,765.26x = 30,037.32 × 12,204.68
  4. Step 4: Simplify right side
    21,765.26x = 366,595,878.66
  5. Step 5: Solve for x
    x = 366,595,878.66/21,765.26
  6. Step 6: Final answer
    x = 16,843.17

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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.