Home / 20,677.48-28,524.90-12,288.04

Finding the Fourth Proportional to 20,677.48, 28,524.90 and 12,288.04

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Solution

The fourth proportional to 20,677.48, 28,524.90 and 12,288.04 is: 16,951.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.48 : 28,524.90 = 12,288.04 : x
  2. Step 2: Convert to fraction form
    20,677.48/28,524.90 = 12,288.04/x
  3. Step 3: Cross multiply
    20,677.48x = 28,524.90 × 12,288.04
  4. Step 4: Simplify right side
    20,677.48x = 350,515,112.20
  5. Step 5: Solve for x
    x = 350,515,112.20/20,677.48
  6. Step 6: Final answer
    x = 16,951.54

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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.