Home / 20,633.48-28,487.42-14,183.84

Finding the Fourth Proportional to 20,633.48, 28,487.42 and 14,183.84

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Solution

The fourth proportional to 20,633.48, 28,487.42 and 14,183.84 is: 19,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.48 : 28,487.42 = 14,183.84 : x
  2. Step 2: Convert to fraction form
    20,633.48/28,487.42 = 14,183.84/x
  3. Step 3: Cross multiply
    20,633.48x = 28,487.42 × 14,183.84
  4. Step 4: Simplify right side
    20,633.48x = 404,060,900.32
  5. Step 5: Solve for x
    x = 404,060,900.32/20,633.48
  6. Step 6: Final answer
    x = 19,582.78

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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.