Home / 19,860.82-27,408.96-10,908.70

Finding the Fourth Proportional to 19,860.82, 27,408.96 and 10,908.70

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Solution

The fourth proportional to 19,860.82, 27,408.96 and 10,908.70 is: 15,054.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.82 : 27,408.96 = 10,908.70 : x
  2. Step 2: Convert to fraction form
    19,860.82/27,408.96 = 10,908.70/x
  3. Step 3: Cross multiply
    19,860.82x = 27,408.96 × 10,908.70
  4. Step 4: Simplify right side
    19,860.82x = 298,996,053.43
  5. Step 5: Solve for x
    x = 298,996,053.43/19,860.82
  6. Step 6: Final answer
    x = 15,054.57

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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.