Home / 19,936.77-29,830.30-12,207.08

Finding the Fourth Proportional to 19,936.77, 29,830.30 and 12,207.08

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Solution

The fourth proportional to 19,936.77, 29,830.30 and 12,207.08 is: 18,264.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936.77 : 29,830.30 = 12,207.08 : x
  2. Step 2: Convert to fraction form
    19,936.77/29,830.30 = 12,207.08/x
  3. Step 3: Cross multiply
    19,936.77x = 29,830.30 × 12,207.08
  4. Step 4: Simplify right side
    19,936.77x = 364,140,678.85
  5. Step 5: Solve for x
    x = 364,140,678.85/19,936.77
  6. Step 6: Final answer
    x = 18,264.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.