Home / 43,920.84-65,882.34-12,756.36

Finding the Fourth Proportional to 43,920.84, 65,882.34 and 12,756.36

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Solution

The fourth proportional to 43,920.84, 65,882.34 and 12,756.36 is: 19,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,920.84 : 65,882.34 = 12,756.36 : x
  2. Step 2: Convert to fraction form
    43,920.84/65,882.34 = 12,756.36/x
  3. Step 3: Cross multiply
    43,920.84x = 65,882.34 × 12,756.36
  4. Step 4: Simplify right side
    43,920.84x = 840,418,846.68
  5. Step 5: Solve for x
    x = 840,418,846.68/43,920.84
  6. Step 6: Final answer
    x = 19,134.85

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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.