Home / 31,268.76-43,150.14-17,122.20

Finding the Fourth Proportional to 31,268.76, 43,150.14 and 17,122.20

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Solution

The fourth proportional to 31,268.76, 43,150.14 and 17,122.20 is: 23,628.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,268.76 : 43,150.14 = 17,122.20 : x
  2. Step 2: Convert to fraction form
    31,268.76/43,150.14 = 17,122.20/x
  3. Step 3: Cross multiply
    31,268.76x = 43,150.14 × 17,122.20
  4. Step 4: Simplify right side
    31,268.76x = 738,825,327.11
  5. Step 5: Solve for x
    x = 738,825,327.11/31,268.76
  6. Step 6: Final answer
    x = 23,628.23

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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.