Home / 31,398.88-43,330.64-17,251.36

Finding the Fourth Proportional to 31,398.88, 43,330.64 and 17,251.36

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Solution

The fourth proportional to 31,398.88, 43,330.64 and 17,251.36 is: 23,806.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,398.88 : 43,330.64 = 17,251.36 : x
  2. Step 2: Convert to fraction form
    31,398.88/43,330.64 = 17,251.36/x
  3. Step 3: Cross multiply
    31,398.88x = 43,330.64 × 17,251.36
  4. Step 4: Simplify right side
    31,398.88x = 747,512,469.67
  5. Step 5: Solve for x
    x = 747,512,469.67/31,398.88
  6. Step 6: Final answer
    x = 23,806.98

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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.