Home / 20,120.41-27,767.56-11,625.40

Finding the Fourth Proportional to 20,120.41, 27,767.56 and 11,625.40

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Solution

The fourth proportional to 20,120.41, 27,767.56 and 11,625.40 is: 16,043.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120.41 : 27,767.56 = 11,625.40 : x
  2. Step 2: Convert to fraction form
    20,120.41/27,767.56 = 11,625.40/x
  3. Step 3: Cross multiply
    20,120.41x = 27,767.56 × 11,625.40
  4. Step 4: Simplify right side
    20,120.41x = 322,808,992.02
  5. Step 5: Solve for x
    x = 322,808,992.02/20,120.41
  6. Step 6: Final answer
    x = 16,043.86

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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.