Home / 18,532.26-27,728.64-12,996.42

Finding the Fourth Proportional to 18,532.26, 27,728.64 and 12,996.42

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Solution

The fourth proportional to 18,532.26, 27,728.64 and 12,996.42 is: 19,445.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,532.26 : 27,728.64 = 12,996.42 : x
  2. Step 2: Convert to fraction form
    18,532.26/27,728.64 = 12,996.42/x
  3. Step 3: Cross multiply
    18,532.26x = 27,728.64 × 12,996.42
  4. Step 4: Simplify right side
    18,532.26x = 360,373,051.47
  5. Step 5: Solve for x
    x = 360,373,051.47/18,532.26
  6. Step 6: Final answer
    x = 19,445.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.