Home / 28,137.10-38,832.88-16,200.94

Finding the Fourth Proportional to 28,137.10, 38,832.88 and 16,200.94

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Solution

The fourth proportional to 28,137.10, 38,832.88 and 16,200.94 is: 22,359.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,137.10 : 38,832.88 = 16,200.94 : x
  2. Step 2: Convert to fraction form
    28,137.10/38,832.88 = 16,200.94/x
  3. Step 3: Cross multiply
    28,137.10x = 38,832.88 × 16,200.94
  4. Step 4: Simplify right side
    28,137.10x = 629,129,158.91
  5. Step 5: Solve for x
    x = 629,129,158.91/28,137.10
  6. Step 6: Final answer
    x = 22,359.42

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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.