Home / 31,610.88-43,629.84-21,563.37

Finding the Fourth Proportional to 31,610.88, 43,629.84 and 21,563.37

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Solution

The fourth proportional to 31,610.88, 43,629.84 and 21,563.37 is: 29,762.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,610.88 : 43,629.84 = 21,563.37 : x
  2. Step 2: Convert to fraction form
    31,610.88/43,629.84 = 21,563.37/x
  3. Step 3: Cross multiply
    31,610.88x = 43,629.84 × 21,563.37
  4. Step 4: Simplify right side
    31,610.88x = 940,806,382.96
  5. Step 5: Solve for x
    x = 940,806,382.96/31,610.88
  6. Step 6: Final answer
    x = 29,762.11

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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.