Home / 30,619.50-45,936.93-8,731.50

Finding the Fourth Proportional to 30,619.50, 45,936.93 and 8,731.50

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Solution

The fourth proportional to 30,619.50, 45,936.93 and 8,731.50 is: 13,099.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.50 : 45,936.93 = 8,731.50 : x
  2. Step 2: Convert to fraction form
    30,619.50/45,936.93 = 8,731.50/x
  3. Step 3: Cross multiply
    30,619.50x = 45,936.93 × 8,731.50
  4. Step 4: Simplify right side
    30,619.50x = 401,098,304.30
  5. Step 5: Solve for x
    x = 401,098,304.30/30,619.50
  6. Step 6: Final answer
    x = 13,099.44

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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.