Home / 20,763.24-28,655.46-12,269.56

Finding the Fourth Proportional to 20,763.24, 28,655.46 and 12,269.56

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Solution

The fourth proportional to 20,763.24, 28,655.46 and 12,269.56 is: 16,933.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.24 : 28,655.46 = 12,269.56 : x
  2. Step 2: Convert to fraction form
    20,763.24/28,655.46 = 12,269.56/x
  3. Step 3: Cross multiply
    20,763.24x = 28,655.46 × 12,269.56
  4. Step 4: Simplify right side
    20,763.24x = 351,589,885.80
  5. Step 5: Solve for x
    x = 351,589,885.80/20,763.24
  6. Step 6: Final answer
    x = 16,933.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.