Home / 31,860.76-43,955.22-18,429.52

Finding the Fourth Proportional to 31,860.76, 43,955.22 and 18,429.52

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Solution

The fourth proportional to 31,860.76, 43,955.22 and 18,429.52 is: 25,425.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,860.76 : 43,955.22 = 18,429.52 : x
  2. Step 2: Convert to fraction form
    31,860.76/43,955.22 = 18,429.52/x
  3. Step 3: Cross multiply
    31,860.76x = 43,955.22 × 18,429.52
  4. Step 4: Simplify right side
    31,860.76x = 810,073,606.09
  5. Step 5: Solve for x
    x = 810,073,606.09/31,860.76
  6. Step 6: Final answer
    x = 25,425.43

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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.