Home / 31,653.10-43,686.66-18,232.12

Finding the Fourth Proportional to 31,653.10, 43,686.66 and 18,232.12

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Solution

The fourth proportional to 31,653.10, 43,686.66 and 18,232.12 is: 25,163.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,653.10 : 43,686.66 = 18,232.12 : x
  2. Step 2: Convert to fraction form
    31,653.10/43,686.66 = 18,232.12/x
  3. Step 3: Cross multiply
    31,653.10x = 43,686.66 × 18,232.12
  4. Step 4: Simplify right side
    31,653.10x = 796,500,427.52
  5. Step 5: Solve for x
    x = 796,500,427.52/31,653.10
  6. Step 6: Final answer
    x = 25,163.43

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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.