Home / 18,781.44-25,884.52-16,631.16

Finding the Fourth Proportional to 18,781.44, 25,884.52 and 16,631.16

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Solution

The fourth proportional to 18,781.44, 25,884.52 and 16,631.16 is: 22,921.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781.44 : 25,884.52 = 16,631.16 : x
  2. Step 2: Convert to fraction form
    18,781.44/25,884.52 = 16,631.16/x
  3. Step 3: Cross multiply
    18,781.44x = 25,884.52 × 16,631.16
  4. Step 4: Simplify right side
    18,781.44x = 430,489,593.64
  5. Step 5: Solve for x
    x = 430,489,593.64/18,781.44
  6. Step 6: Final answer
    x = 22,921.01

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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.