Home / 31,610.40-43,620.60-19,673.36

Finding the Fourth Proportional to 31,610.40, 43,620.60 and 19,673.36

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Solution

The fourth proportional to 31,610.40, 43,620.60 and 19,673.36 is: 27,148.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,610.40 : 43,620.60 = 19,673.36 : x
  2. Step 2: Convert to fraction form
    31,610.40/43,620.60 = 19,673.36/x
  3. Step 3: Cross multiply
    31,610.40x = 43,620.60 × 19,673.36
  4. Step 4: Simplify right side
    31,610.40x = 858,163,767.22
  5. Step 5: Solve for x
    x = 858,163,767.22/31,610.40
  6. Step 6: Final answer
    x = 27,148.15

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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.