Home / 20,656.05-30,934.82-11,282.06

Finding the Fourth Proportional to 20,656.05, 30,934.82 and 11,282.06

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Solution

The fourth proportional to 20,656.05, 30,934.82 and 11,282.06 is: 16,896.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.05 : 30,934.82 = 11,282.06 : x
  2. Step 2: Convert to fraction form
    20,656.05/30,934.82 = 11,282.06/x
  3. Step 3: Cross multiply
    20,656.05x = 30,934.82 × 11,282.06
  4. Step 4: Simplify right side
    20,656.05x = 349,008,284.24
  5. Step 5: Solve for x
    x = 349,008,284.24/20,656.05
  6. Step 6: Final answer
    x = 16,896.18

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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.