Home / 31,425.05-43,366.73-17,278.80

Finding the Fourth Proportional to 31,425.05, 43,366.73 and 17,278.80

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Solution

The fourth proportional to 31,425.05, 43,366.73 and 17,278.80 is: 23,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,425.05 : 43,366.73 = 17,278.80 : x
  2. Step 2: Convert to fraction form
    31,425.05/43,366.73 = 17,278.80/x
  3. Step 3: Cross multiply
    31,425.05x = 43,366.73 × 17,278.80
  4. Step 4: Simplify right side
    31,425.05x = 749,324,967.93
  5. Step 5: Solve for x
    x = 749,324,967.93/31,425.05
  6. Step 6: Final answer
    x = 23,844.83

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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.