Home / 20,554.10-30,832.21-6,515.62

Finding the Fourth Proportional to 20,554.10, 30,832.21 and 6,515.62

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Solution

The fourth proportional to 20,554.10, 30,832.21 and 6,515.62 is: 9,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.10 : 30,832.21 = 6,515.62 : x
  2. Step 2: Convert to fraction form
    20,554.10/30,832.21 = 6,515.62/x
  3. Step 3: Cross multiply
    20,554.10x = 30,832.21 × 6,515.62
  4. Step 4: Simplify right side
    20,554.10x = 200,890,777.38
  5. Step 5: Solve for x
    x = 200,890,777.38/20,554.10
  6. Step 6: Final answer
    x = 9,773.76

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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.