Home / 21,717.77-32,539.43-11,863.94

Finding the Fourth Proportional to 21,717.77, 32,539.43 and 11,863.94

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Solution

The fourth proportional to 21,717.77, 32,539.43 and 11,863.94 is: 17,775.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,717.77 : 32,539.43 = 11,863.94 : x
  2. Step 2: Convert to fraction form
    21,717.77/32,539.43 = 11,863.94/x
  3. Step 3: Cross multiply
    21,717.77x = 32,539.43 × 11,863.94
  4. Step 4: Simplify right side
    21,717.77x = 386,045,623.14
  5. Step 5: Solve for x
    x = 386,045,623.14/21,717.77
  6. Step 6: Final answer
    x = 17,775.57

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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.