Home / 21,857.40-32,770.98-11,163.06

Finding the Fourth Proportional to 21,857.40, 32,770.98 and 11,163.06

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Solution

The fourth proportional to 21,857.40, 32,770.98 and 11,163.06 is: 16,736.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,857.40 : 32,770.98 = 11,163.06 : x
  2. Step 2: Convert to fraction form
    21,857.40/32,770.98 = 11,163.06/x
  3. Step 3: Cross multiply
    21,857.40x = 32,770.98 × 11,163.06
  4. Step 4: Simplify right side
    21,857.40x = 365,824,416.00
  5. Step 5: Solve for x
    x = 365,824,416.00/21,857.40
  6. Step 6: Final answer
    x = 16,736.87

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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.