Home / 31,438.46-43,372.76-18,002.48

Finding the Fourth Proportional to 31,438.46, 43,372.76 and 18,002.48

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Solution

The fourth proportional to 31,438.46, 43,372.76 and 18,002.48 is: 24,836.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,438.46 : 43,372.76 = 18,002.48 : x
  2. Step 2: Convert to fraction form
    31,438.46/43,372.76 = 18,002.48/x
  3. Step 3: Cross multiply
    31,438.46x = 43,372.76 × 18,002.48
  4. Step 4: Simplify right side
    31,438.46x = 780,817,244.44
  5. Step 5: Solve for x
    x = 780,817,244.44/31,438.46
  6. Step 6: Final answer
    x = 24,836.37

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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.