Home / 20,118.48-27,776.03-18,863.25

Finding the Fourth Proportional to 20,118.48, 27,776.03 and 18,863.25

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Solution

The fourth proportional to 20,118.48, 27,776.03 and 18,863.25 is: 26,043.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.48 : 27,776.03 = 18,863.25 : x
  2. Step 2: Convert to fraction form
    20,118.48/27,776.03 = 18,863.25/x
  3. Step 3: Cross multiply
    20,118.48x = 27,776.03 × 18,863.25
  4. Step 4: Simplify right side
    20,118.48x = 523,946,103.58
  5. Step 5: Solve for x
    x = 523,946,103.58/20,118.48
  6. Step 6: Final answer
    x = 26,043.03

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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.