Home / 36,306.73-50,103.30-20,390.77

Finding the Fourth Proportional to 36,306.73, 50,103.30 and 20,390.77

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Solution

The fourth proportional to 36,306.73, 50,103.30 and 20,390.77 is: 28,139.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,306.73 : 50,103.30 = 20,390.77 : x
  2. Step 2: Convert to fraction form
    36,306.73/50,103.30 = 20,390.77/x
  3. Step 3: Cross multiply
    36,306.73x = 50,103.30 × 20,390.77
  4. Step 4: Simplify right side
    36,306.73x = 1,021,644,866.54
  5. Step 5: Solve for x
    x = 1,021,644,866.54/36,306.73
  6. Step 6: Final answer
    x = 28,139.27

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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.