Home / 21,957.09-32,879.25-12,085.35

Finding the Fourth Proportional to 21,957.09, 32,879.25 and 12,085.35

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Solution

The fourth proportional to 21,957.09, 32,879.25 and 12,085.35 is: 18,096.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.09 : 32,879.25 = 12,085.35 : x
  2. Step 2: Convert to fraction form
    21,957.09/32,879.25 = 12,085.35/x
  3. Step 3: Cross multiply
    21,957.09x = 32,879.25 × 12,085.35
  4. Step 4: Simplify right side
    21,957.09x = 397,357,243.99
  5. Step 5: Solve for x
    x = 397,357,243.99/21,957.09
  6. Step 6: Final answer
    x = 18,096.99

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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.