Home / 19,940.82-27,517.10-10,987.83

Finding the Fourth Proportional to 19,940.82, 27,517.10 and 10,987.83

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Solution

The fourth proportional to 19,940.82, 27,517.10 and 10,987.83 is: 15,162.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.82 : 27,517.10 = 10,987.83 : x
  2. Step 2: Convert to fraction form
    19,940.82/27,517.10 = 10,987.83/x
  3. Step 3: Cross multiply
    19,940.82x = 27,517.10 × 10,987.83
  4. Step 4: Simplify right side
    19,940.82x = 302,353,161.95
  5. Step 5: Solve for x
    x = 302,353,161.95/19,940.82
  6. Step 6: Final answer
    x = 15,162.52

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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.