Home / 31,364.28-43,283.82-17,218.20

Finding the Fourth Proportional to 31,364.28, 43,283.82 and 17,218.20

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Solution

The fourth proportional to 31,364.28, 43,283.82 and 17,218.20 is: 23,761.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,364.28 : 43,283.82 = 17,218.20 : x
  2. Step 2: Convert to fraction form
    31,364.28/43,283.82 = 17,218.20/x
  3. Step 3: Cross multiply
    31,364.28x = 43,283.82 × 17,218.20
  4. Step 4: Simplify right side
    31,364.28x = 745,269,469.52
  5. Step 5: Solve for x
    x = 745,269,469.52/31,364.28
  6. Step 6: Final answer
    x = 23,761.73

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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.