Home / 21,072.92-31,609.26-8,592.89

Finding the Fourth Proportional to 21,072.92, 31,609.26 and 8,592.89

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Solution

The fourth proportional to 21,072.92, 31,609.26 and 8,592.89 is: 12,889.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,072.92 : 31,609.26 = 8,592.89 : x
  2. Step 2: Convert to fraction form
    21,072.92/31,609.26 = 8,592.89/x
  3. Step 3: Cross multiply
    21,072.92x = 31,609.26 × 8,592.89
  4. Step 4: Simplify right side
    21,072.92x = 271,614,736.12
  5. Step 5: Solve for x
    x = 271,614,736.12/21,072.92
  6. Step 6: Final answer
    x = 12,889.28

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1.5x scale

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.