Home / 27,893.36-38,517.84-20,807.48

Finding the Fourth Proportional to 27,893.36, 38,517.84 and 20,807.48

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Solution

The fourth proportional to 27,893.36, 38,517.84 and 20,807.48 is: 28,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,893.36 : 38,517.84 = 20,807.48 : x
  2. Step 2: Convert to fraction form
    27,893.36/38,517.84 = 20,807.48/x
  3. Step 3: Cross multiply
    27,893.36x = 38,517.84 × 20,807.48
  4. Step 4: Simplify right side
    27,893.36x = 801,459,185.44
  5. Step 5: Solve for x
    x = 801,459,185.44/27,893.36
  6. Step 6: Final answer
    x = 28,732.97

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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.