Home / 31,372.20-43,274.61-18,616.98

Finding the Fourth Proportional to 31,372.20, 43,274.61 and 18,616.98

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Solution

The fourth proportional to 31,372.20, 43,274.61 and 18,616.98 is: 25,680.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,372.20 : 43,274.61 = 18,616.98 : x
  2. Step 2: Convert to fraction form
    31,372.20/43,274.61 = 18,616.98/x
  3. Step 3: Cross multiply
    31,372.20x = 43,274.61 × 18,616.98
  4. Step 4: Simplify right side
    31,372.20x = 805,642,548.88
  5. Step 5: Solve for x
    x = 805,642,548.88/31,372.20
  6. Step 6: Final answer
    x = 25,680.14

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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.