Home / 31,578.54-43,594.14-19,645.72

Finding the Fourth Proportional to 31,578.54, 43,594.14 and 19,645.72

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Solution

The fourth proportional to 31,578.54, 43,594.14 and 19,645.72 is: 27,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,578.54 : 43,594.14 = 19,645.72 : x
  2. Step 2: Convert to fraction form
    31,578.54/43,594.14 = 19,645.72/x
  3. Step 3: Cross multiply
    31,578.54x = 43,594.14 × 19,645.72
  4. Step 4: Simplify right side
    31,578.54x = 856,438,268.08
  5. Step 5: Solve for x
    x = 856,438,268.08/31,578.54
  6. Step 6: Final answer
    x = 27,120.90

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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.