Home / 31,432.75-43,377.63-18,003.99

Finding the Fourth Proportional to 31,432.75, 43,377.63 and 18,003.99

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Solution

The fourth proportional to 31,432.75, 43,377.63 and 18,003.99 is: 24,845.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432.75 : 43,377.63 = 18,003.99 : x
  2. Step 2: Convert to fraction form
    31,432.75/43,377.63 = 18,003.99/x
  3. Step 3: Cross multiply
    31,432.75x = 43,377.63 × 18,003.99
  4. Step 4: Simplify right side
    31,432.75x = 780,970,535.68
  5. Step 5: Solve for x
    x = 780,970,535.68/31,432.75
  6. Step 6: Final answer
    x = 24,845.76

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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.