Home / 19,708.69-29,561.82-8,021.61

Finding the Fourth Proportional to 19,708.69, 29,561.82 and 8,021.61

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Solution

The fourth proportional to 19,708.69, 29,561.82 and 8,021.61 is: 12,031.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.69 : 29,561.82 = 8,021.61 : x
  2. Step 2: Convert to fraction form
    19,708.69/29,561.82 = 8,021.61/x
  3. Step 3: Cross multiply
    19,708.69x = 29,561.82 × 8,021.61
  4. Step 4: Simplify right side
    19,708.69x = 237,133,390.93
  5. Step 5: Solve for x
    x = 237,133,390.93/19,708.69
  6. Step 6: Final answer
    x = 12,031.92

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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.