Home / 20,943.26-28,903.36-11,993.58

Finding the Fourth Proportional to 20,943.26, 28,903.36 and 11,993.58

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Solution

The fourth proportional to 20,943.26, 28,903.36 and 11,993.58 is: 16,552.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943.26 : 28,903.36 = 11,993.58 : x
  2. Step 2: Convert to fraction form
    20,943.26/28,903.36 = 11,993.58/x
  3. Step 3: Cross multiply
    20,943.26x = 28,903.36 × 11,993.58
  4. Step 4: Simplify right side
    20,943.26x = 346,654,760.43
  5. Step 5: Solve for x
    x = 346,654,760.43/20,943.26
  6. Step 6: Final answer
    x = 16,552.09

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1.5x scale

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.