Home / 19,926.69-29,902.32-8,239.88

Finding the Fourth Proportional to 19,926.69, 29,902.32 and 8,239.88

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Solution

The fourth proportional to 19,926.69, 29,902.32 and 8,239.88 is: 12,364.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,926.69 : 29,902.32 = 8,239.88 : x
  2. Step 2: Convert to fraction form
    19,926.69/29,902.32 = 8,239.88/x
  3. Step 3: Cross multiply
    19,926.69x = 29,902.32 × 8,239.88
  4. Step 4: Simplify right side
    19,926.69x = 246,391,379.01
  5. Step 5: Solve for x
    x = 246,391,379.01/19,926.69
  6. Step 6: Final answer
    x = 12,364.89

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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.