Home / 19,486.55-29,155.04-11,170.55

Finding the Fourth Proportional to 19,486.55, 29,155.04 and 11,170.55

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Solution

The fourth proportional to 19,486.55, 29,155.04 and 11,170.55 is: 16,712.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486.55 : 29,155.04 = 11,170.55 : x
  2. Step 2: Convert to fraction form
    19,486.55/29,155.04 = 11,170.55/x
  3. Step 3: Cross multiply
    19,486.55x = 29,155.04 × 11,170.55
  4. Step 4: Simplify right side
    19,486.55x = 325,677,891.00
  5. Step 5: Solve for x
    x = 325,677,891.00/19,486.55
  6. Step 6: Final answer
    x = 16,712.96

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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.