Home / 21,611.66-32,356.37-11,456.91

Finding the Fourth Proportional to 21,611.66, 32,356.37 and 11,456.91

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Solution

The fourth proportional to 21,611.66, 32,356.37 and 11,456.91 is: 17,152.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,611.66 : 32,356.37 = 11,456.91 : x
  2. Step 2: Convert to fraction form
    21,611.66/32,356.37 = 11,456.91/x
  3. Step 3: Cross multiply
    21,611.66x = 32,356.37 × 11,456.91
  4. Step 4: Simplify right side
    21,611.66x = 370,704,047.66
  5. Step 5: Solve for x
    x = 370,704,047.66/21,611.66
  6. Step 6: Final answer
    x = 17,152.97

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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.