Home / 28,129.86-38,827.58-16,201.58

Finding the Fourth Proportional to 28,129.86, 38,827.58 and 16,201.58

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Solution

The fourth proportional to 28,129.86, 38,827.58 and 16,201.58 is: 22,362.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129.86 : 38,827.58 = 16,201.58 : x
  2. Step 2: Convert to fraction form
    28,129.86/38,827.58 = 16,201.58/x
  3. Step 3: Cross multiply
    28,129.86x = 38,827.58 × 16,201.58
  4. Step 4: Simplify right side
    28,129.86x = 629,067,868.43
  5. Step 5: Solve for x
    x = 629,067,868.43/28,129.86
  6. Step 6: Final answer
    x = 22,362.99

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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.