Home / 20,257.89-27,955.83-11,305.29

Finding the Fourth Proportional to 20,257.89, 27,955.83 and 11,305.29

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Solution

The fourth proportional to 20,257.89, 27,955.83 and 11,305.29 is: 15,601.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.89 : 27,955.83 = 11,305.29 : x
  2. Step 2: Convert to fraction form
    20,257.89/27,955.83 = 11,305.29/x
  3. Step 3: Cross multiply
    20,257.89x = 27,955.83 × 11,305.29
  4. Step 4: Simplify right side
    20,257.89x = 316,048,765.34
  5. Step 5: Solve for x
    x = 316,048,765.34/20,257.89
  6. Step 6: Final answer
    x = 15,601.27

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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.