Home / 31,644.99-43,673.27-18,216.81

Finding the Fourth Proportional to 31,644.99, 43,673.27 and 18,216.81

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Solution

The fourth proportional to 31,644.99, 43,673.27 and 18,216.81 is: 25,141.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,644.99 : 43,673.27 = 18,216.81 : x
  2. Step 2: Convert to fraction form
    31,644.99/43,673.27 = 18,216.81/x
  3. Step 3: Cross multiply
    31,644.99x = 43,673.27 × 18,216.81
  4. Step 4: Simplify right side
    31,644.99x = 795,587,570.58
  5. Step 5: Solve for x
    x = 795,587,570.58/31,644.99
  6. Step 6: Final answer
    x = 25,141.03

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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.