Home / 19,983.06-29,975.67-5,191.58

Finding the Fourth Proportional to 19,983.06, 29,975.67 and 5,191.58

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Solution

The fourth proportional to 19,983.06, 29,975.67 and 5,191.58 is: 7,787.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.06 : 29,975.67 = 5,191.58 : x
  2. Step 2: Convert to fraction form
    19,983.06/29,975.67 = 5,191.58/x
  3. Step 3: Cross multiply
    19,983.06x = 29,975.67 × 5,191.58
  4. Step 4: Simplify right side
    19,983.06x = 155,621,163.80
  5. Step 5: Solve for x
    x = 155,621,163.80/19,983.06
  6. Step 6: Final answer
    x = 7,787.65

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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.