Home / 31,269.36-43,151.40-17,121.36

Finding the Fourth Proportional to 31,269.36, 43,151.40 and 17,121.36

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Solution

The fourth proportional to 31,269.36, 43,151.40 and 17,121.36 is: 23,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,269.36 : 43,151.40 = 17,121.36 : x
  2. Step 2: Convert to fraction form
    31,269.36/43,151.40 = 17,121.36/x
  3. Step 3: Cross multiply
    31,269.36x = 43,151.40 × 17,121.36
  4. Step 4: Simplify right side
    31,269.36x = 738,810,653.90
  5. Step 5: Solve for x
    x = 738,810,653.90/31,269.36
  6. Step 6: Final answer
    x = 23,627.30

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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.