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Finding the Fourth Proportional to 32,586, 48,879 and 11,809.50

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Solution

The fourth proportional to 32,586, 48,879 and 11,809.50 is: 17,714.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,586 : 48,879 = 11,809.50 : x
  2. Step 2: Convert to fraction form
    32,586/48,879 = 11,809.50/x
  3. Step 3: Cross multiply
    32,586x = 48,879 × 11,809.50
  4. Step 4: Simplify right side
    32,586x = 577,236,550.50
  5. Step 5: Solve for x
    x = 577,236,550.50/32,586
  6. Step 6: Final answer
    x = 17,714.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.