Home / 21,564.16-32,339.82-8,413.36

Finding the Fourth Proportional to 21,564.16, 32,339.82 and 8,413.36

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Solution

The fourth proportional to 21,564.16, 32,339.82 and 8,413.36 is: 12,617.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,564.16 : 32,339.82 = 8,413.36 : x
  2. Step 2: Convert to fraction form
    21,564.16/32,339.82 = 8,413.36/x
  3. Step 3: Cross multiply
    21,564.16x = 32,339.82 × 8,413.36
  4. Step 4: Simplify right side
    21,564.16x = 272,086,548.00
  5. Step 5: Solve for x
    x = 272,086,548.00/21,564.16
  6. Step 6: Final answer
    x = 12,617.54

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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.