Home / 26,664.88-39,935.04-21,080.72

Finding the Fourth Proportional to 26,664.88, 39,935.04 and 21,080.72

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Solution

The fourth proportional to 26,664.88, 39,935.04 and 21,080.72 is: 31,571.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,664.88 : 39,935.04 = 21,080.72 : x
  2. Step 2: Convert to fraction form
    26,664.88/39,935.04 = 21,080.72/x
  3. Step 3: Cross multiply
    26,664.88x = 39,935.04 × 21,080.72
  4. Step 4: Simplify right side
    26,664.88x = 841,859,396.43
  5. Step 5: Solve for x
    x = 841,859,396.43/26,664.88
  6. Step 6: Final answer
    x = 31,571.84

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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.