Home / 31,261.22-43,140.60-17,115.38

Finding the Fourth Proportional to 31,261.22, 43,140.60 and 17,115.38

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Solution

The fourth proportional to 31,261.22, 43,140.60 and 17,115.38 is: 23,619.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,261.22 : 43,140.60 = 17,115.38 : x
  2. Step 2: Convert to fraction form
    31,261.22/43,140.60 = 17,115.38/x
  3. Step 3: Cross multiply
    31,261.22x = 43,140.60 × 17,115.38
  4. Step 4: Simplify right side
    31,261.22x = 738,367,762.43
  5. Step 5: Solve for x
    x = 738,367,762.43/31,261.22
  6. Step 6: Final answer
    x = 23,619.29

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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.