Home / 26,425.14-39,644.31-18,649.14

Finding the Fourth Proportional to 26,425.14, 39,644.31 and 18,649.14

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Solution

The fourth proportional to 26,425.14, 39,644.31 and 18,649.14 is: 27,978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,425.14 : 39,644.31 = 18,649.14 : x
  2. Step 2: Convert to fraction form
    26,425.14/39,644.31 = 18,649.14/x
  3. Step 3: Cross multiply
    26,425.14x = 39,644.31 × 18,649.14
  4. Step 4: Simplify right side
    26,425.14x = 739,332,287.39
  5. Step 5: Solve for x
    x = 739,332,287.39/26,425.14
  6. Step 6: Final answer
    x = 27,978.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.