Home / 33,985.28-50,981.16-12,912.32

Finding the Fourth Proportional to 33,985.28, 50,981.16 and 12,912.32

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Solution

The fourth proportional to 33,985.28, 50,981.16 and 12,912.32 is: 19,369.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,985.28 : 50,981.16 = 12,912.32 : x
  2. Step 2: Convert to fraction form
    33,985.28/50,981.16 = 12,912.32/x
  3. Step 3: Cross multiply
    33,985.28x = 50,981.16 × 12,912.32
  4. Step 4: Simplify right side
    33,985.28x = 658,285,051.89
  5. Step 5: Solve for x
    x = 658,285,051.89/33,985.28
  6. Step 6: Final answer
    x = 19,369.71

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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.