Home / 21,277.08-31,914.72-8,793.72

Finding the Fourth Proportional to 21,277.08, 31,914.72 and 8,793.72

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Solution

The fourth proportional to 21,277.08, 31,914.72 and 8,793.72 is: 13,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.08 : 31,914.72 = 8,793.72 : x
  2. Step 2: Convert to fraction form
    21,277.08/31,914.72 = 8,793.72/x
  3. Step 3: Cross multiply
    21,277.08x = 31,914.72 × 8,793.72
  4. Step 4: Simplify right side
    21,277.08x = 280,649,111.56
  5. Step 5: Solve for x
    x = 280,649,111.56/21,277.08
  6. Step 6: Final answer
    x = 13,190.21

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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.