Home / 21,063.37-31,594.97-8,580.61

Finding the Fourth Proportional to 21,063.37, 31,594.97 and 8,580.61

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Solution

The fourth proportional to 21,063.37, 31,594.97 and 8,580.61 is: 12,870.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.37 : 31,594.97 = 8,580.61 : x
  2. Step 2: Convert to fraction form
    21,063.37/31,594.97 = 8,580.61/x
  3. Step 3: Cross multiply
    21,063.37x = 31,594.97 × 8,580.61
  4. Step 4: Simplify right side
    21,063.37x = 271,104,072.63
  5. Step 5: Solve for x
    x = 271,104,072.63/21,063.37
  6. Step 6: Final answer
    x = 12,870.88

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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.