Home / 35,815.50-49,426.38-21,660.12

Finding the Fourth Proportional to 35,815.50, 49,426.38 and 21,660.12

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Solution

The fourth proportional to 35,815.50, 49,426.38 and 21,660.12 is: 29,891.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,815.50 : 49,426.38 = 21,660.12 : x
  2. Step 2: Convert to fraction form
    35,815.50/49,426.38 = 21,660.12/x
  3. Step 3: Cross multiply
    35,815.50x = 49,426.38 × 21,660.12
  4. Step 4: Simplify right side
    35,815.50x = 1,070,581,321.97
  5. Step 5: Solve for x
    x = 1,070,581,321.97/35,815.50
  6. Step 6: Final answer
    x = 29,891.56

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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.