Home / 28,245.96-38,982.89-16,309.28

Finding the Fourth Proportional to 28,245.96, 38,982.89 and 16,309.28

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Solution

The fourth proportional to 28,245.96, 38,982.89 and 16,309.28 is: 22,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.96 : 38,982.89 = 16,309.28 : x
  2. Step 2: Convert to fraction form
    28,245.96/38,982.89 = 16,309.28/x
  3. Step 3: Cross multiply
    28,245.96x = 38,982.89 × 16,309.28
  4. Step 4: Simplify right side
    28,245.96x = 635,782,652.92
  5. Step 5: Solve for x
    x = 635,782,652.92/28,245.96
  6. Step 6: Final answer
    x = 22,508.80

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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.