Home / 35,511.72-49,004.51-20,393.73

Finding the Fourth Proportional to 35,511.72, 49,004.51 and 20,393.73

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Solution

The fourth proportional to 35,511.72, 49,004.51 and 20,393.73 is: 28,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,511.72 : 49,004.51 = 20,393.73 : x
  2. Step 2: Convert to fraction form
    35,511.72/49,004.51 = 20,393.73/x
  3. Step 3: Cross multiply
    35,511.72x = 49,004.51 × 20,393.73
  4. Step 4: Simplify right side
    35,511.72x = 999,384,551.68
  5. Step 5: Solve for x
    x = 999,384,551.68/35,511.72
  6. Step 6: Final answer
    x = 28,142.38

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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.