Home / 31,788.27-43,857.68-18,357.75

Finding the Fourth Proportional to 31,788.27, 43,857.68 and 18,357.75

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Solution

The fourth proportional to 31,788.27, 43,857.68 and 18,357.75 is: 25,327.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788.27 : 43,857.68 = 18,357.75 : x
  2. Step 2: Convert to fraction form
    31,788.27/43,857.68 = 18,357.75/x
  3. Step 3: Cross multiply
    31,788.27x = 43,857.68 × 18,357.75
  4. Step 4: Simplify right side
    31,788.27x = 805,128,233.23
  5. Step 5: Solve for x
    x = 805,128,233.23/31,788.27
  6. Step 6: Final answer
    x = 25,327.84

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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.