Home / 31,426.89-43,369.07-18,002.49

Finding the Fourth Proportional to 31,426.89, 43,369.07 and 18,002.49

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Solution

The fourth proportional to 31,426.89, 43,369.07 and 18,002.49 is: 24,843.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.89 : 43,369.07 = 18,002.49 : x
  2. Step 2: Convert to fraction form
    31,426.89/43,369.07 = 18,002.49/x
  3. Step 3: Cross multiply
    31,426.89x = 43,369.07 × 18,002.49
  4. Step 4: Simplify right side
    31,426.89x = 780,751,158.97
  5. Step 5: Solve for x
    x = 780,751,158.97/31,426.89
  6. Step 6: Final answer
    x = 24,843.41

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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.