Home / 21,521.43-32,273.64-8,371.89

Finding the Fourth Proportional to 21,521.43, 32,273.64 and 8,371.89

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Solution

The fourth proportional to 21,521.43, 32,273.64 and 8,371.89 is: 12,554.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,521.43 : 32,273.64 = 8,371.89 : x
  2. Step 2: Convert to fraction form
    21,521.43/32,273.64 = 8,371.89/x
  3. Step 3: Cross multiply
    21,521.43x = 32,273.64 × 8,371.89
  4. Step 4: Simplify right side
    21,521.43x = 270,191,363.98
  5. Step 5: Solve for x
    x = 270,191,363.98/21,521.43
  6. Step 6: Final answer
    x = 12,554.53

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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.