Home / 35,221.98-48,603.84-20,115.48

Finding the Fourth Proportional to 35,221.98, 48,603.84 and 20,115.48

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Solution

The fourth proportional to 35,221.98, 48,603.84 and 20,115.48 is: 27,757.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,221.98 : 48,603.84 = 20,115.48 : x
  2. Step 2: Convert to fraction form
    35,221.98/48,603.84 = 20,115.48/x
  3. Step 3: Cross multiply
    35,221.98x = 48,603.84 × 20,115.48
  4. Step 4: Simplify right side
    35,221.98x = 977,689,571.44
  5. Step 5: Solve for x
    x = 977,689,571.44/35,221.98
  6. Step 6: Final answer
    x = 27,757.94

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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.