Home / 13,805.36-20,706.60-3,944

Finding the Fourth Proportional to 13,805.36, 20,706.60 and 3,944

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Solution

The fourth proportional to 13,805.36, 20,706.60 and 3,944 is: 5,915.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.36 : 20,706.60 = 3,944 : x
  2. Step 2: Convert to fraction form
    13,805.36/20,706.60 = 3,944/x
  3. Step 3: Cross multiply
    13,805.36x = 20,706.60 × 3,944
  4. Step 4: Simplify right side
    13,805.36x = 81,666,830.40
  5. Step 5: Solve for x
    x = 81,666,830.40/13,805.36
  6. Step 6: Final answer
    x = 5,915.59

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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.