Home / 29,112.36-40,172.40-16,362.60

Finding the Fourth Proportional to 29,112.36, 40,172.40 and 16,362.60

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Solution

The fourth proportional to 29,112.36, 40,172.40 and 16,362.60 is: 22,578.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,112.36 : 40,172.40 = 16,362.60 : x
  2. Step 2: Convert to fraction form
    29,112.36/40,172.40 = 16,362.60/x
  3. Step 3: Cross multiply
    29,112.36x = 40,172.40 × 16,362.60
  4. Step 4: Simplify right side
    29,112.36x = 657,324,912.24
  5. Step 5: Solve for x
    x = 657,324,912.24/29,112.36
  6. Step 6: Final answer
    x = 22,578.89

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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.