Home / 20,141.18-30,080.06-17,147.71

Finding the Fourth Proportional to 20,141.18, 30,080.06 and 17,147.71

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Solution

The fourth proportional to 20,141.18, 30,080.06 and 17,147.71 is: 25,609.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.18 : 30,080.06 = 17,147.71 : x
  2. Step 2: Convert to fraction form
    20,141.18/30,080.06 = 17,147.71/x
  3. Step 3: Cross multiply
    20,141.18x = 30,080.06 × 17,147.71
  4. Step 4: Simplify right side
    20,141.18x = 515,804,145.66
  5. Step 5: Solve for x
    x = 515,804,145.66/20,141.18
  6. Step 6: Final answer
    x = 25,609.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.