Home / 20,045.31-30,067.66-6,897.79

Finding the Fourth Proportional to 20,045.31, 30,067.66 and 6,897.79

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Solution

The fourth proportional to 20,045.31, 30,067.66 and 6,897.79 is: 10,346.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.31 : 30,067.66 = 6,897.79 : x
  2. Step 2: Convert to fraction form
    20,045.31/30,067.66 = 6,897.79/x
  3. Step 3: Cross multiply
    20,045.31x = 30,067.66 × 6,897.79
  4. Step 4: Simplify right side
    20,045.31x = 207,400,404.47
  5. Step 5: Solve for x
    x = 207,400,404.47/20,045.31
  6. Step 6: Final answer
    x = 10,346.58

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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.