Home / 31,387.37-43,314.57-17,240.21

Finding the Fourth Proportional to 31,387.37, 43,314.57 and 17,240.21

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Solution

The fourth proportional to 31,387.37, 43,314.57 and 17,240.21 is: 23,791.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,387.37 : 43,314.57 = 17,240.21 : x
  2. Step 2: Convert to fraction form
    31,387.37/43,314.57 = 17,240.21/x
  3. Step 3: Cross multiply
    31,387.37x = 43,314.57 × 17,240.21
  4. Step 4: Simplify right side
    31,387.37x = 746,752,196.66
  5. Step 5: Solve for x
    x = 746,752,196.66/31,387.37
  6. Step 6: Final answer
    x = 23,791.49

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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.