Home / 27,189.36-40,731.32-15,917.36

Finding the Fourth Proportional to 27,189.36, 40,731.32 and 15,917.36

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Solution

The fourth proportional to 27,189.36, 40,731.32 and 15,917.36 is: 23,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,189.36 : 40,731.32 = 15,917.36 : x
  2. Step 2: Convert to fraction form
    27,189.36/40,731.32 = 15,917.36/x
  3. Step 3: Cross multiply
    27,189.36x = 40,731.32 × 15,917.36
  4. Step 4: Simplify right side
    27,189.36x = 648,335,083.72
  5. Step 5: Solve for x
    x = 648,335,083.72/27,189.36
  6. Step 6: Final answer
    x = 23,845.18

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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.