Home / 21,180.45-31,758.51-8,024.43

Finding the Fourth Proportional to 21,180.45, 31,758.51 and 8,024.43

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Solution

The fourth proportional to 21,180.45, 31,758.51 and 8,024.43 is: 12,032.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180.45 : 31,758.51 = 8,024.43 : x
  2. Step 2: Convert to fraction form
    21,180.45/31,758.51 = 8,024.43/x
  3. Step 3: Cross multiply
    21,180.45x = 31,758.51 × 8,024.43
  4. Step 4: Simplify right side
    21,180.45x = 254,843,940.40
  5. Step 5: Solve for x
    x = 254,843,940.40/21,180.45
  6. Step 6: Final answer
    x = 12,032.04

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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.