Home / 31,614.30-43,629-18,185.56

Finding the Fourth Proportional to 31,614.30, 43,629 and 18,185.56

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Solution

The fourth proportional to 31,614.30, 43,629 and 18,185.56 is: 25,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,614.30 : 43,629 = 18,185.56 : x
  2. Step 2: Convert to fraction form
    31,614.30/43,629 = 18,185.56/x
  3. Step 3: Cross multiply
    31,614.30x = 43,629 × 18,185.56
  4. Step 4: Simplify right side
    31,614.30x = 793,417,797.24
  5. Step 5: Solve for x
    x = 793,417,797.24/31,614.30
  6. Step 6: Final answer
    x = 25,096.80

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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.