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Finding the Fourth Proportional to 26,651.64, 39,978 and 6,929.04

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Solution

The fourth proportional to 26,651.64, 39,978 and 6,929.04 is: 10,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,651.64 : 39,978 = 6,929.04 : x
  2. Step 2: Convert to fraction form
    26,651.64/39,978 = 6,929.04/x
  3. Step 3: Cross multiply
    26,651.64x = 39,978 × 6,929.04
  4. Step 4: Simplify right side
    26,651.64x = 277,009,161.12
  5. Step 5: Solve for x
    x = 277,009,161.12/26,651.64
  6. Step 6: Final answer
    x = 10,393.70

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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.