Home / 35,879.21-49,507.70-20,768.92

Finding the Fourth Proportional to 35,879.21, 49,507.70 and 20,768.92

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Solution

The fourth proportional to 35,879.21, 49,507.70 and 20,768.92 is: 28,657.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,879.21 : 49,507.70 = 20,768.92 : x
  2. Step 2: Convert to fraction form
    35,879.21/49,507.70 = 20,768.92/x
  3. Step 3: Cross multiply
    35,879.21x = 49,507.70 × 20,768.92
  4. Step 4: Simplify right side
    35,879.21x = 1,028,221,388.84
  5. Step 5: Solve for x
    x = 1,028,221,388.84/35,879.21
  6. Step 6: Final answer
    x = 28,657.86

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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.