Home / 31,578.56-43,594.12-19,645.76

Finding the Fourth Proportional to 31,578.56, 43,594.12 and 19,645.76

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Solution

The fourth proportional to 31,578.56, 43,594.12 and 19,645.76 is: 27,120.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,578.56 : 43,594.12 = 19,645.76 : x
  2. Step 2: Convert to fraction form
    31,578.56/43,594.12 = 19,645.76/x
  3. Step 3: Cross multiply
    31,578.56x = 43,594.12 × 19,645.76
  4. Step 4: Simplify right side
    31,578.56x = 856,439,618.93
  5. Step 5: Solve for x
    x = 856,439,618.93/31,578.56
  6. Step 6: Final answer
    x = 27,120.92

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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.