Home / 20,893.89-28,833.66-11,462.25

Finding the Fourth Proportional to 20,893.89, 28,833.66 and 11,462.25

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Solution

The fourth proportional to 20,893.89, 28,833.66 and 11,462.25 is: 15,817.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.89 : 28,833.66 = 11,462.25 : x
  2. Step 2: Convert to fraction form
    20,893.89/28,833.66 = 11,462.25/x
  3. Step 3: Cross multiply
    20,893.89x = 28,833.66 × 11,462.25
  4. Step 4: Simplify right side
    20,893.89x = 330,498,619.34
  5. Step 5: Solve for x
    x = 330,498,619.34/20,893.89
  6. Step 6: Final answer
    x = 15,817.96

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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.