Home / 20,244.03-27,936.80-11,291.30

Finding the Fourth Proportional to 20,244.03, 27,936.80 and 11,291.30

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Solution

The fourth proportional to 20,244.03, 27,936.80 and 11,291.30 is: 15,582.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,244.03 : 27,936.80 = 11,291.30 : x
  2. Step 2: Convert to fraction form
    20,244.03/27,936.80 = 11,291.30/x
  3. Step 3: Cross multiply
    20,244.03x = 27,936.80 × 11,291.30
  4. Step 4: Simplify right side
    20,244.03x = 315,442,740.80
  5. Step 5: Solve for x
    x = 315,442,740.80/20,244.03
  6. Step 6: Final answer
    x = 15,582.02

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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.