Home / 20,382.72-30,554.64-6,522.72

Finding the Fourth Proportional to 20,382.72, 30,554.64 and 6,522.72

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Solution

The fourth proportional to 20,382.72, 30,554.64 and 6,522.72 is: 9,777.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,382.72 : 30,554.64 = 6,522.72 : x
  2. Step 2: Convert to fraction form
    20,382.72/30,554.64 = 6,522.72/x
  3. Step 3: Cross multiply
    20,382.72x = 30,554.64 × 6,522.72
  4. Step 4: Simplify right side
    20,382.72x = 199,299,361.42
  5. Step 5: Solve for x
    x = 199,299,361.42/20,382.72
  6. Step 6: Final answer
    x = 9,777.86

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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.