Home / 28,134.53-38,790.37-18,045.17

Finding the Fourth Proportional to 28,134.53, 38,790.37 and 18,045.17

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Solution

The fourth proportional to 28,134.53, 38,790.37 and 18,045.17 is: 24,879.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.53 : 38,790.37 = 18,045.17 : x
  2. Step 2: Convert to fraction form
    28,134.53/38,790.37 = 18,045.17/x
  3. Step 3: Cross multiply
    28,134.53x = 38,790.37 × 18,045.17
  4. Step 4: Simplify right side
    28,134.53x = 699,978,872.88
  5. Step 5: Solve for x
    x = 699,978,872.88/28,134.53
  6. Step 6: Final answer
    x = 24,879.71

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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.