Home / 21,933.48-32,879.34-7,131.99

Finding the Fourth Proportional to 21,933.48, 32,879.34 and 7,131.99

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Solution

The fourth proportional to 21,933.48, 32,879.34 and 7,131.99 is: 10,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.48 : 32,879.34 = 7,131.99 : x
  2. Step 2: Convert to fraction form
    21,933.48/32,879.34 = 7,131.99/x
  3. Step 3: Cross multiply
    21,933.48x = 32,879.34 × 7,131.99
  4. Step 4: Simplify right side
    21,933.48x = 234,495,124.09
  5. Step 5: Solve for x
    x = 234,495,124.09/21,933.48
  6. Step 6: Final answer
    x = 10,691.20

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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.