Home / 43,071.75-64,607.63-11,907

Finding the Fourth Proportional to 43,071.75, 64,607.63 and 11,907

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Solution

The fourth proportional to 43,071.75, 64,607.63 and 11,907 is: 17,860.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,071.75 : 64,607.63 = 11,907 : x
  2. Step 2: Convert to fraction form
    43,071.75/64,607.63 = 11,907/x
  3. Step 3: Cross multiply
    43,071.75x = 64,607.63 × 11,907
  4. Step 4: Simplify right side
    43,071.75x = 769,282,990.88
  5. Step 5: Solve for x
    x = 769,282,990.88/43,071.75
  6. Step 6: Final answer
    x = 17,860.50

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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.