Home / 20,773.08-31,136.94-7,614.36

Finding the Fourth Proportional to 20,773.08, 31,136.94 and 7,614.36

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Solution

The fourth proportional to 20,773.08, 31,136.94 and 7,614.36 is: 11,413.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.08 : 31,136.94 = 7,614.36 : x
  2. Step 2: Convert to fraction form
    20,773.08/31,136.94 = 7,614.36/x
  3. Step 3: Cross multiply
    20,773.08x = 31,136.94 × 7,614.36
  4. Step 4: Simplify right side
    20,773.08x = 237,087,870.46
  5. Step 5: Solve for x
    x = 237,087,870.46/20,773.08
  6. Step 6: Final answer
    x = 11,413.23

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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.