Home / 31,679.64-43,713.54-18,249.84

Finding the Fourth Proportional to 31,679.64, 43,713.54 and 18,249.84

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Solution

The fourth proportional to 31,679.64, 43,713.54 and 18,249.84 is: 25,182.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,679.64 : 43,713.54 = 18,249.84 : x
  2. Step 2: Convert to fraction form
    31,679.64/43,713.54 = 18,249.84/x
  3. Step 3: Cross multiply
    31,679.64x = 43,713.54 × 18,249.84
  4. Step 4: Simplify right side
    31,679.64x = 797,765,110.83
  5. Step 5: Solve for x
    x = 797,765,110.83/31,679.64
  6. Step 6: Final answer
    x = 25,182.27

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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.