Home / 35,979.30-49,651.92-20,872.80

Finding the Fourth Proportional to 35,979.30, 49,651.92 and 20,872.80

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Solution

The fourth proportional to 35,979.30, 49,651.92 and 20,872.80 is: 28,804.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,979.30 : 49,651.92 = 20,872.80 : x
  2. Step 2: Convert to fraction form
    35,979.30/49,651.92 = 20,872.80/x
  3. Step 3: Cross multiply
    35,979.30x = 49,651.92 × 20,872.80
  4. Step 4: Simplify right side
    35,979.30x = 1,036,374,595.78
  5. Step 5: Solve for x
    x = 1,036,374,595.78/35,979.30
  6. Step 6: Final answer
    x = 28,804.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.