Home / 20,706.22-31,049.80-6,663.65

Finding the Fourth Proportional to 20,706.22, 31,049.80 and 6,663.65

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Solution

The fourth proportional to 20,706.22, 31,049.80 and 6,663.65 is: 9,992.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,706.22 : 31,049.80 = 6,663.65 : x
  2. Step 2: Convert to fraction form
    20,706.22/31,049.80 = 6,663.65/x
  3. Step 3: Cross multiply
    20,706.22x = 31,049.80 × 6,663.65
  4. Step 4: Simplify right side
    20,706.22x = 206,904,999.77
  5. Step 5: Solve for x
    x = 206,904,999.77/20,706.22
  6. Step 6: Final answer
    x = 9,992.41

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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.