Home / 20,266.56-27,964.44-11,313.72

Finding the Fourth Proportional to 20,266.56, 27,964.44 and 11,313.72

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Solution

The fourth proportional to 20,266.56, 27,964.44 and 11,313.72 is: 15,611.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.56 : 27,964.44 = 11,313.72 : x
  2. Step 2: Convert to fraction form
    20,266.56/27,964.44 = 11,313.72/x
  3. Step 3: Cross multiply
    20,266.56x = 27,964.44 × 11,313.72
  4. Step 4: Simplify right side
    20,266.56x = 316,381,844.12
  5. Step 5: Solve for x
    x = 316,381,844.12/20,266.56
  6. Step 6: Final answer
    x = 15,611.03

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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.