Home / 20,579.80-30,793.14-12,264.36

Finding the Fourth Proportional to 20,579.80, 30,793.14 and 12,264.36

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Solution

The fourth proportional to 20,579.80, 30,793.14 and 12,264.36 is: 18,350.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.80 : 30,793.14 = 12,264.36 : x
  2. Step 2: Convert to fraction form
    20,579.80/30,793.14 = 12,264.36/x
  3. Step 3: Cross multiply
    20,579.80x = 30,793.14 × 12,264.36
  4. Step 4: Simplify right side
    20,579.80x = 377,658,154.49
  5. Step 5: Solve for x
    x = 377,658,154.49/20,579.80
  6. Step 6: Final answer
    x = 18,350.91

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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.