Home / 31,664.64-43,696-17,518.08

Finding the Fourth Proportional to 31,664.64, 43,696 and 17,518.08

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Solution

The fourth proportional to 31,664.64, 43,696 and 17,518.08 is: 24,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,664.64 : 43,696 = 17,518.08 : x
  2. Step 2: Convert to fraction form
    31,664.64/43,696 = 17,518.08/x
  3. Step 3: Cross multiply
    31,664.64x = 43,696 × 17,518.08
  4. Step 4: Simplify right side
    31,664.64x = 765,470,023.68
  5. Step 5: Solve for x
    x = 765,470,023.68/31,664.64
  6. Step 6: Final answer
    x = 24,174.28

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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.