Home / 43,889.84-65,836.38-20,510

Finding the Fourth Proportional to 43,889.84, 65,836.38 and 20,510

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Solution

The fourth proportional to 43,889.84, 65,836.38 and 20,510 is: 30,765.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,889.84 : 65,836.38 = 20,510 : x
  2. Step 2: Convert to fraction form
    43,889.84/65,836.38 = 20,510/x
  3. Step 3: Cross multiply
    43,889.84x = 65,836.38 × 20,510
  4. Step 4: Simplify right side
    43,889.84x = 1,350,304,153.80
  5. Step 5: Solve for x
    x = 1,350,304,153.80/43,889.84
  6. Step 6: Final answer
    x = 30,765.76

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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.