Home / 31,243.64-43,102.98-19,148.84

Finding the Fourth Proportional to 31,243.64, 43,102.98 and 19,148.84

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Solution

The fourth proportional to 31,243.64, 43,102.98 and 19,148.84 is: 26,417.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,243.64 : 43,102.98 = 19,148.84 : x
  2. Step 2: Convert to fraction form
    31,243.64/43,102.98 = 19,148.84/x
  3. Step 3: Cross multiply
    31,243.64x = 43,102.98 × 19,148.84
  4. Step 4: Simplify right side
    31,243.64x = 825,372,067.54
  5. Step 5: Solve for x
    x = 825,372,067.54/31,243.64
  6. Step 6: Final answer
    x = 26,417.28

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1.5x scale

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.