Home / 28,894.35-39,879.32-18,697.94

Finding the Fourth Proportional to 28,894.35, 39,879.32 and 18,697.94

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Solution

The fourth proportional to 28,894.35, 39,879.32 and 18,697.94 is: 25,806.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,894.35 : 39,879.32 = 18,697.94 : x
  2. Step 2: Convert to fraction form
    28,894.35/39,879.32 = 18,697.94/x
  3. Step 3: Cross multiply
    28,894.35x = 39,879.32 × 18,697.94
  4. Step 4: Simplify right side
    28,894.35x = 745,660,839.71
  5. Step 5: Solve for x
    x = 745,660,839.71/28,894.35
  6. Step 6: Final answer
    x = 25,806.46

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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.