Home / 31,814.78-43,884.21-19,544.81

Finding the Fourth Proportional to 31,814.78, 43,884.21 and 19,544.81

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Solution

The fourth proportional to 31,814.78, 43,884.21 and 19,544.81 is: 26,959.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,814.78 : 43,884.21 = 19,544.81 : x
  2. Step 2: Convert to fraction form
    31,814.78/43,884.21 = 19,544.81/x
  3. Step 3: Cross multiply
    31,814.78x = 43,884.21 × 19,544.81
  4. Step 4: Simplify right side
    31,814.78x = 857,708,656.16
  5. Step 5: Solve for x
    x = 857,708,656.16/31,814.78
  6. Step 6: Final answer
    x = 26,959.44

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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.