Home / 28,379.34-39,163.47-16,449.59

Finding the Fourth Proportional to 28,379.34, 39,163.47 and 16,449.59

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Solution

The fourth proportional to 28,379.34, 39,163.47 and 16,449.59 is: 22,700.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379.34 : 39,163.47 = 16,449.59 : x
  2. Step 2: Convert to fraction form
    28,379.34/39,163.47 = 16,449.59/x
  3. Step 3: Cross multiply
    28,379.34x = 39,163.47 × 16,449.59
  4. Step 4: Simplify right side
    28,379.34x = 644,222,828.66
  5. Step 5: Solve for x
    x = 644,222,828.66/28,379.34
  6. Step 6: Final answer
    x = 22,700.42

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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.