Home / 28,450.62-39,262.32-18,906.66

Finding the Fourth Proportional to 28,450.62, 39,262.32 and 18,906.66

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Solution

The fourth proportional to 28,450.62, 39,262.32 and 18,906.66 is: 26,091.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.62 : 39,262.32 = 18,906.66 : x
  2. Step 2: Convert to fraction form
    28,450.62/39,262.32 = 18,906.66/x
  3. Step 3: Cross multiply
    28,450.62x = 39,262.32 × 18,906.66
  4. Step 4: Simplify right side
    28,450.62x = 742,319,335.05
  5. Step 5: Solve for x
    x = 742,319,335.05/28,450.62
  6. Step 6: Final answer
    x = 26,091.50

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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.