Home / 21,636.24-29,856.84-12,204.18

Finding the Fourth Proportional to 21,636.24, 29,856.84 and 12,204.18

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Solution

The fourth proportional to 21,636.24, 29,856.84 and 12,204.18 is: 16,841.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,636.24 : 29,856.84 = 12,204.18 : x
  2. Step 2: Convert to fraction form
    21,636.24/29,856.84 = 12,204.18/x
  3. Step 3: Cross multiply
    21,636.24x = 29,856.84 × 12,204.18
  4. Step 4: Simplify right side
    21,636.24x = 364,378,249.59
  5. Step 5: Solve for x
    x = 364,378,249.59/21,636.24
  6. Step 6: Final answer
    x = 16,841.11

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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.