Home / 31,187.75-43,040.04-17,041.51

Finding the Fourth Proportional to 31,187.75, 43,040.04 and 17,041.51

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Solution

The fourth proportional to 31,187.75, 43,040.04 and 17,041.51 is: 23,517.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,187.75 : 43,040.04 = 17,041.51 : x
  2. Step 2: Convert to fraction form
    31,187.75/43,040.04 = 17,041.51/x
  3. Step 3: Cross multiply
    31,187.75x = 43,040.04 × 17,041.51
  4. Step 4: Simplify right side
    31,187.75x = 733,467,056.86
  5. Step 5: Solve for x
    x = 733,467,056.86/31,187.75
  6. Step 6: Final answer
    x = 23,517.79

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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.