Home / 21,052.54-31,597.17-8,579.35

Finding the Fourth Proportional to 21,052.54, 31,597.17 and 8,579.35

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Solution

The fourth proportional to 21,052.54, 31,597.17 and 8,579.35 is: 12,876.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.54 : 31,597.17 = 8,579.35 : x
  2. Step 2: Convert to fraction form
    21,052.54/31,597.17 = 8,579.35/x
  3. Step 3: Cross multiply
    21,052.54x = 31,597.17 × 8,579.35
  4. Step 4: Simplify right side
    21,052.54x = 271,083,180.44
  5. Step 5: Solve for x
    x = 271,083,180.44/21,052.54
  6. Step 6: Final answer
    x = 12,876.51

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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.