Home / 21,649.41-32,451.84-11,786.04

Finding the Fourth Proportional to 21,649.41, 32,451.84 and 11,786.04

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Solution

The fourth proportional to 21,649.41, 32,451.84 and 11,786.04 is: 17,666.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,649.41 : 32,451.84 = 11,786.04 : x
  2. Step 2: Convert to fraction form
    21,649.41/32,451.84 = 11,786.04/x
  3. Step 3: Cross multiply
    21,649.41x = 32,451.84 × 11,786.04
  4. Step 4: Simplify right side
    21,649.41x = 382,478,684.31
  5. Step 5: Solve for x
    x = 382,478,684.31/21,649.41
  6. Step 6: Final answer
    x = 17,666.93

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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.