Home / 40,120.94-55,362.40-22,211.45

Finding the Fourth Proportional to 40,120.94, 55,362.40 and 22,211.45

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Solution

The fourth proportional to 40,120.94, 55,362.40 and 22,211.45 is: 30,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.94 : 55,362.40 = 22,211.45 : x
  2. Step 2: Convert to fraction form
    40,120.94/55,362.40 = 22,211.45/x
  3. Step 3: Cross multiply
    40,120.94x = 55,362.40 × 22,211.45
  4. Step 4: Simplify right side
    40,120.94x = 1,229,679,179.69
  5. Step 5: Solve for x
    x = 1,229,679,179.69/40,120.94
  6. Step 6: Final answer
    x = 30,649.31

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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.