Home / 31,456.94-43,410.48-17,309.78

Finding the Fourth Proportional to 31,456.94, 43,410.48 and 17,309.78

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Solution

The fourth proportional to 31,456.94, 43,410.48 and 17,309.78 is: 23,887.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456.94 : 43,410.48 = 17,309.78 : x
  2. Step 2: Convert to fraction form
    31,456.94/43,410.48 = 17,309.78/x
  3. Step 3: Cross multiply
    31,456.94x = 43,410.48 × 17,309.78
  4. Step 4: Simplify right side
    31,456.94x = 751,425,641.44
  5. Step 5: Solve for x
    x = 751,425,641.44/31,456.94
  6. Step 6: Final answer
    x = 23,887.44

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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.