Home / 19,424.31-29,136.42-7,734.75

Finding the Fourth Proportional to 19,424.31, 29,136.42 and 7,734.75

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Solution

The fourth proportional to 19,424.31, 29,136.42 and 7,734.75 is: 11,602.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,424.31 : 29,136.42 = 7,734.75 : x
  2. Step 2: Convert to fraction form
    19,424.31/29,136.42 = 7,734.75/x
  3. Step 3: Cross multiply
    19,424.31x = 29,136.42 × 7,734.75
  4. Step 4: Simplify right side
    19,424.31x = 225,362,924.60
  5. Step 5: Solve for x
    x = 225,362,924.60/19,424.31
  6. Step 6: Final answer
    x = 11,602.11

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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.