Home / 28,330.44-42,448.36-19,996.80

Finding the Fourth Proportional to 28,330.44, 42,448.36 and 19,996.80

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Solution

The fourth proportional to 28,330.44, 42,448.36 and 19,996.80 is: 29,961.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.44 : 42,448.36 = 19,996.80 : x
  2. Step 2: Convert to fraction form
    28,330.44/42,448.36 = 19,996.80/x
  3. Step 3: Cross multiply
    28,330.44x = 42,448.36 × 19,996.80
  4. Step 4: Simplify right side
    28,330.44x = 848,831,365.25
  5. Step 5: Solve for x
    x = 848,831,365.25/28,330.44
  6. Step 6: Final answer
    x = 29,961.81

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1.5x scale

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.