Home / 20,134.60-27,786.02-11,182.68

Finding the Fourth Proportional to 20,134.60, 27,786.02 and 11,182.68

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Solution

The fourth proportional to 20,134.60, 27,786.02 and 11,182.68 is: 15,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.60 : 27,786.02 = 11,182.68 : x
  2. Step 2: Convert to fraction form
    20,134.60/27,786.02 = 11,182.68/x
  3. Step 3: Cross multiply
    20,134.60x = 27,786.02 × 11,182.68
  4. Step 4: Simplify right side
    20,134.60x = 310,722,170.13
  5. Step 5: Solve for x
    x = 310,722,170.13/20,134.60
  6. Step 6: Final answer
    x = 15,432.25

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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.