Home / 20,257.80-27,955.73-11,305.27

Finding the Fourth Proportional to 20,257.80, 27,955.73 and 11,305.27

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Solution

The fourth proportional to 20,257.80, 27,955.73 and 11,305.27 is: 15,601.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.80 : 27,955.73 = 11,305.27 : x
  2. Step 2: Convert to fraction form
    20,257.80/27,955.73 = 11,305.27/x
  3. Step 3: Cross multiply
    20,257.80x = 27,955.73 × 11,305.27
  4. Step 4: Simplify right side
    20,257.80x = 316,047,138.90
  5. Step 5: Solve for x
    x = 316,047,138.90/20,257.80
  6. Step 6: Final answer
    x = 15,601.26

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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.