Home / 26,772.36-39,982.76-21,515.37

Finding the Fourth Proportional to 26,772.36, 39,982.76 and 21,515.37

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Solution

The fourth proportional to 26,772.36, 39,982.76 and 21,515.37 is: 32,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,772.36 : 39,982.76 = 21,515.37 : x
  2. Step 2: Convert to fraction form
    26,772.36/39,982.76 = 21,515.37/x
  3. Step 3: Cross multiply
    26,772.36x = 39,982.76 × 21,515.37
  4. Step 4: Simplify right side
    26,772.36x = 860,243,767.44
  5. Step 5: Solve for x
    x = 860,243,767.44/26,772.36
  6. Step 6: Final answer
    x = 32,131.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.