Home / 40,016.54-55,220.09-22,111.40

Finding the Fourth Proportional to 40,016.54, 55,220.09 and 22,111.40

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Solution

The fourth proportional to 40,016.54, 55,220.09 and 22,111.40 is: 30,512.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,016.54 : 55,220.09 = 22,111.40 : x
  2. Step 2: Convert to fraction form
    40,016.54/55,220.09 = 22,111.40/x
  3. Step 3: Cross multiply
    40,016.54x = 55,220.09 × 22,111.40
  4. Step 4: Simplify right side
    40,016.54x = 1,220,993,111.37
  5. Step 5: Solve for x
    x = 1,220,993,111.37/40,016.54
  6. Step 6: Final answer
    x = 30,512.21

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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.