Home / 40,698.12-61,049.48-12,622.16

Finding the Fourth Proportional to 40,698.12, 61,049.48 and 12,622.16

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Solution

The fourth proportional to 40,698.12, 61,049.48 and 12,622.16 is: 18,933.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,698.12 : 61,049.48 = 12,622.16 : x
  2. Step 2: Convert to fraction form
    40,698.12/61,049.48 = 12,622.16/x
  3. Step 3: Cross multiply
    40,698.12x = 61,049.48 × 12,622.16
  4. Step 4: Simplify right side
    40,698.12x = 770,576,304.48
  5. Step 5: Solve for x
    x = 770,576,304.48/40,698.12
  6. Step 6: Final answer
    x = 18,933.96

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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.