Home / 21,852.75-32,731.13-18,061.62

Finding the Fourth Proportional to 21,852.75, 32,731.13 and 18,061.62

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Solution

The fourth proportional to 21,852.75, 32,731.13 and 18,061.62 is: 27,052.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,852.75 : 32,731.13 = 18,061.62 : x
  2. Step 2: Convert to fraction form
    21,852.75/32,731.13 = 18,061.62/x
  3. Step 3: Cross multiply
    21,852.75x = 32,731.13 × 18,061.62
  4. Step 4: Simplify right side
    21,852.75x = 591,177,141.92
  5. Step 5: Solve for x
    x = 591,177,141.92/21,852.75
  6. Step 6: Final answer
    x = 27,052.76

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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.