Home / 35,835.70-49,451.12-19,919.60

Finding the Fourth Proportional to 35,835.70, 49,451.12 and 19,919.60

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Solution

The fourth proportional to 35,835.70, 49,451.12 and 19,919.60 is: 27,487.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,835.70 : 49,451.12 = 19,919.60 : x
  2. Step 2: Convert to fraction form
    35,835.70/49,451.12 = 19,919.60/x
  3. Step 3: Cross multiply
    35,835.70x = 49,451.12 × 19,919.60
  4. Step 4: Simplify right side
    35,835.70x = 985,046,529.95
  5. Step 5: Solve for x
    x = 985,046,529.95/35,835.70
  6. Step 6: Final answer
    x = 27,487.86

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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.