Home / 35,676.80-49,235.76-20,571.92

Finding the Fourth Proportional to 35,676.80, 49,235.76 and 20,571.92

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Solution

The fourth proportional to 35,676.80, 49,235.76 and 20,571.92 is: 28,390.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,676.80 : 49,235.76 = 20,571.92 : x
  2. Step 2: Convert to fraction form
    35,676.80/49,235.76 = 20,571.92/x
  3. Step 3: Cross multiply
    35,676.80x = 49,235.76 × 20,571.92
  4. Step 4: Simplify right side
    35,676.80x = 1,012,874,115.86
  5. Step 5: Solve for x
    x = 1,012,874,115.86/35,676.80
  6. Step 6: Final answer
    x = 28,390.27

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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.