Home / 31,399.86-43,331.79-17,253.61

Finding the Fourth Proportional to 31,399.86, 43,331.79 and 17,253.61

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Solution

The fourth proportional to 31,399.86, 43,331.79 and 17,253.61 is: 23,809.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.86 : 43,331.79 = 17,253.61 : x
  2. Step 2: Convert to fraction form
    31,399.86/43,331.79 = 17,253.61/x
  3. Step 3: Cross multiply
    31,399.86x = 43,331.79 × 17,253.61
  4. Step 4: Simplify right side
    31,399.86x = 747,629,805.26
  5. Step 5: Solve for x
    x = 747,629,805.26/31,399.86
  6. Step 6: Final answer
    x = 23,809.98

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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.