Home / 28,379.59-39,163.82-16,449.84

Finding the Fourth Proportional to 28,379.59, 39,163.82 and 16,449.84

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Solution

The fourth proportional to 28,379.59, 39,163.82 and 16,449.84 is: 22,700.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379.59 : 39,163.82 = 16,449.84 : x
  2. Step 2: Convert to fraction form
    28,379.59/39,163.82 = 16,449.84/x
  3. Step 3: Cross multiply
    28,379.59x = 39,163.82 × 16,449.84
  4. Step 4: Simplify right side
    28,379.59x = 644,238,490.54
  5. Step 5: Solve for x
    x = 644,238,490.54/28,379.59
  6. Step 6: Final answer
    x = 22,700.77

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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.