Home / 40,485.75-60,729-15,519.84

Finding the Fourth Proportional to 40,485.75, 60,729 and 15,519.84

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Solution

The fourth proportional to 40,485.75, 60,729 and 15,519.84 is: 23,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,485.75 : 60,729 = 15,519.84 : x
  2. Step 2: Convert to fraction form
    40,485.75/60,729 = 15,519.84/x
  3. Step 3: Cross multiply
    40,485.75x = 60,729 × 15,519.84
  4. Step 4: Simplify right side
    40,485.75x = 942,504,363.36
  5. Step 5: Solve for x
    x = 942,504,363.36/40,485.75
  6. Step 6: Final answer
    x = 23,279.90

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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.