Home / 26,781.40-36,958.26-15,453.28

Finding the Fourth Proportional to 26,781.40, 36,958.26 and 15,453.28

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Solution

The fourth proportional to 26,781.40, 36,958.26 and 15,453.28 is: 21,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,781.40 : 36,958.26 = 15,453.28 : x
  2. Step 2: Convert to fraction form
    26,781.40/36,958.26 = 15,453.28/x
  3. Step 3: Cross multiply
    26,781.40x = 36,958.26 × 15,453.28
  4. Step 4: Simplify right side
    26,781.40x = 571,126,340.09
  5. Step 5: Solve for x
    x = 571,126,340.09/26,781.40
  6. Step 6: Final answer
    x = 21,325.48

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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.