Home / 28,150.56-38,851.80-16,212.72

Finding the Fourth Proportional to 28,150.56, 38,851.80 and 16,212.72

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Solution

The fourth proportional to 28,150.56, 38,851.80 and 16,212.72 is: 22,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,150.56 : 38,851.80 = 16,212.72 : x
  2. Step 2: Convert to fraction form
    28,150.56/38,851.80 = 16,212.72/x
  3. Step 3: Cross multiply
    28,150.56x = 38,851.80 × 16,212.72
  4. Step 4: Simplify right side
    28,150.56x = 629,893,354.90
  5. Step 5: Solve for x
    x = 629,893,354.90/28,150.56
  6. Step 6: Final answer
    x = 22,375.87

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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.