Home / 28,379.83-39,164.16-16,450.09

Finding the Fourth Proportional to 28,379.83, 39,164.16 and 16,450.09

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Solution

The fourth proportional to 28,379.83, 39,164.16 and 16,450.09 is: 22,701.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379.83 : 39,164.16 = 16,450.09 : x
  2. Step 2: Convert to fraction form
    28,379.83/39,164.16 = 16,450.09/x
  3. Step 3: Cross multiply
    28,379.83x = 39,164.16 × 16,450.09
  4. Step 4: Simplify right side
    28,379.83x = 644,253,956.77
  5. Step 5: Solve for x
    x = 644,253,956.77/28,379.83
  6. Step 6: Final answer
    x = 22,701.12

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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.