Home / 21,934.80-32,904.90-7,892.64

Finding the Fourth Proportional to 21,934.80, 32,904.90 and 7,892.64

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Solution

The fourth proportional to 21,934.80, 32,904.90 and 7,892.64 is: 11,839.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.80 : 32,904.90 = 7,892.64 : x
  2. Step 2: Convert to fraction form
    21,934.80/32,904.90 = 7,892.64/x
  3. Step 3: Cross multiply
    21,934.80x = 32,904.90 × 7,892.64
  4. Step 4: Simplify right side
    21,934.80x = 259,706,529.94
  5. Step 5: Solve for x
    x = 259,706,529.94/21,934.80
  6. Step 6: Final answer
    x = 11,839.93

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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.