Home / 19,920.90-29,882.14-6,773.38

Finding the Fourth Proportional to 19,920.90, 29,882.14 and 6,773.38

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Solution

The fourth proportional to 19,920.90, 29,882.14 and 6,773.38 is: 10,160.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.90 : 29,882.14 = 6,773.38 : x
  2. Step 2: Convert to fraction form
    19,920.90/29,882.14 = 6,773.38/x
  3. Step 3: Cross multiply
    19,920.90x = 29,882.14 × 6,773.38
  4. Step 4: Simplify right side
    19,920.90x = 202,403,089.43
  5. Step 5: Solve for x
    x = 202,403,089.43/19,920.90
  6. Step 6: Final answer
    x = 10,160.34

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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.