Home / 21,601.33-32,379.75-8,271.19

Finding the Fourth Proportional to 21,601.33, 32,379.75 and 8,271.19

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Solution

The fourth proportional to 21,601.33, 32,379.75 and 8,271.19 is: 12,398.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.33 : 32,379.75 = 8,271.19 : x
  2. Step 2: Convert to fraction form
    21,601.33/32,379.75 = 8,271.19/x
  3. Step 3: Cross multiply
    21,601.33x = 32,379.75 × 8,271.19
  4. Step 4: Simplify right side
    21,601.33x = 267,819,064.40
  5. Step 5: Solve for x
    x = 267,819,064.40/21,601.33
  6. Step 6: Final answer
    x = 12,398.27

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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.