Home / 26,829.64-40,245.32-12,791.20

Finding the Fourth Proportional to 26,829.64, 40,245.32 and 12,791.20

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Solution

The fourth proportional to 26,829.64, 40,245.32 and 12,791.20 is: 19,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,829.64 : 40,245.32 = 12,791.20 : x
  2. Step 2: Convert to fraction form
    26,829.64/40,245.32 = 12,791.20/x
  3. Step 3: Cross multiply
    26,829.64x = 40,245.32 × 12,791.20
  4. Step 4: Simplify right side
    26,829.64x = 514,785,937.18
  5. Step 5: Solve for x
    x = 514,785,937.18/26,829.64
  6. Step 6: Final answer
    x = 19,187.21

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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.