Home / 20,361.12-30,553.02-11,000.94

Finding the Fourth Proportional to 20,361.12, 30,553.02 and 11,000.94

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Solution

The fourth proportional to 20,361.12, 30,553.02 and 11,000.94 is: 16,507.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361.12 : 30,553.02 = 11,000.94 : x
  2. Step 2: Convert to fraction form
    20,361.12/30,553.02 = 11,000.94/x
  3. Step 3: Cross multiply
    20,361.12x = 30,553.02 × 11,000.94
  4. Step 4: Simplify right side
    20,361.12x = 336,111,939.84
  5. Step 5: Solve for x
    x = 336,111,939.84/20,361.12
  6. Step 6: Final answer
    x = 16,507.54

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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.