Home / 31,240.77-43,111.86-17,811.57

Finding the Fourth Proportional to 31,240.77, 43,111.86 and 17,811.57

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Solution

The fourth proportional to 31,240.77, 43,111.86 and 17,811.57 is: 24,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,240.77 : 43,111.86 = 17,811.57 : x
  2. Step 2: Convert to fraction form
    31,240.77/43,111.86 = 17,811.57/x
  3. Step 3: Cross multiply
    31,240.77x = 43,111.86 × 17,811.57
  4. Step 4: Simplify right side
    31,240.77x = 767,889,912.22
  5. Step 5: Solve for x
    x = 767,889,912.22/31,240.77
  6. Step 6: Final answer
    x = 24,579.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.