Home / 31,451.50-43,403.07-17,304.85

Finding the Fourth Proportional to 31,451.50, 43,403.07 and 17,304.85

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Solution

The fourth proportional to 31,451.50, 43,403.07 and 17,304.85 is: 23,880.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.50 : 43,403.07 = 17,304.85 : x
  2. Step 2: Convert to fraction form
    31,451.50/43,403.07 = 17,304.85/x
  3. Step 3: Cross multiply
    31,451.50x = 43,403.07 × 17,304.85
  4. Step 4: Simplify right side
    31,451.50x = 751,083,615.89
  5. Step 5: Solve for x
    x = 751,083,615.89/31,451.50
  6. Step 6: Final answer
    x = 23,880.69

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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.