Home / 20,184.32-27,851.04-11,231.60

Finding the Fourth Proportional to 20,184.32, 27,851.04 and 11,231.60

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Solution

The fourth proportional to 20,184.32, 27,851.04 and 11,231.60 is: 15,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.32 : 27,851.04 = 11,231.60 : x
  2. Step 2: Convert to fraction form
    20,184.32/27,851.04 = 11,231.60/x
  3. Step 3: Cross multiply
    20,184.32x = 27,851.04 × 11,231.60
  4. Step 4: Simplify right side
    20,184.32x = 312,811,601.61
  5. Step 5: Solve for x
    x = 312,811,601.61/20,184.32
  6. Step 6: Final answer
    x = 15,497.75

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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.