Home / 20,306.50-30,385.90-16,763.56

Finding the Fourth Proportional to 20,306.50, 30,385.90 and 16,763.56

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Solution

The fourth proportional to 20,306.50, 30,385.90 and 16,763.56 is: 25,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,306.50 : 30,385.90 = 16,763.56 : x
  2. Step 2: Convert to fraction form
    20,306.50/30,385.90 = 16,763.56/x
  3. Step 3: Cross multiply
    20,306.50x = 30,385.90 × 16,763.56
  4. Step 4: Simplify right side
    20,306.50x = 509,375,857.80
  5. Step 5: Solve for x
    x = 509,375,857.80/20,306.50
  6. Step 6: Final answer
    x = 25,084.37

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1.5x scale

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.