Home / 20,893.88-28,833.06-11,462.36

Finding the Fourth Proportional to 20,893.88, 28,833.06 and 11,462.36

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Solution

The fourth proportional to 20,893.88, 28,833.06 and 11,462.36 is: 15,817.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.88 : 28,833.06 = 11,462.36 : x
  2. Step 2: Convert to fraction form
    20,893.88/28,833.06 = 11,462.36/x
  3. Step 3: Cross multiply
    20,893.88x = 28,833.06 × 11,462.36
  4. Step 4: Simplify right side
    20,893.88x = 330,494,913.62
  5. Step 5: Solve for x
    x = 330,494,913.62/20,893.88
  6. Step 6: Final answer
    x = 15,817.79

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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.