Home / 19,810.98-29,715.75-7,968.42

Finding the Fourth Proportional to 19,810.98, 29,715.75 and 7,968.42

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Solution

The fourth proportional to 19,810.98, 29,715.75 and 7,968.42 is: 11,952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.98 : 29,715.75 = 7,968.42 : x
  2. Step 2: Convert to fraction form
    19,810.98/29,715.75 = 7,968.42/x
  3. Step 3: Cross multiply
    19,810.98x = 29,715.75 × 7,968.42
  4. Step 4: Simplify right side
    19,810.98x = 236,787,576.62
  5. Step 5: Solve for x
    x = 236,787,576.62/19,810.98
  6. Step 6: Final answer
    x = 11,952.34

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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.