Home / 20,733.49-28,611.14-11,779.75

Finding the Fourth Proportional to 20,733.49, 28,611.14 and 11,779.75

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Solution

The fourth proportional to 20,733.49, 28,611.14 and 11,779.75 is: 16,255.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.49 : 28,611.14 = 11,779.75 : x
  2. Step 2: Convert to fraction form
    20,733.49/28,611.14 = 11,779.75/x
  3. Step 3: Cross multiply
    20,733.49x = 28,611.14 × 11,779.75
  4. Step 4: Simplify right side
    20,733.49x = 337,032,076.42
  5. Step 5: Solve for x
    x = 337,032,076.42/20,733.49
  6. Step 6: Final answer
    x = 16,255.44

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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.