Home / 16,781.96-23,139.60-13,952.64

Finding the Fourth Proportional to 16,781.96, 23,139.60 and 13,952.64

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Solution

The fourth proportional to 16,781.96, 23,139.60 and 13,952.64 is: 19,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.96 : 23,139.60 = 13,952.64 : x
  2. Step 2: Convert to fraction form
    16,781.96/23,139.60 = 13,952.64/x
  3. Step 3: Cross multiply
    16,781.96x = 23,139.60 × 13,952.64
  4. Step 4: Simplify right side
    16,781.96x = 322,858,508.54
  5. Step 5: Solve for x
    x = 322,858,508.54/16,781.96
  6. Step 6: Final answer
    x = 19,238.43

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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.