Home / 31,645.46-43,675.26-19,712.54

Finding the Fourth Proportional to 31,645.46, 43,675.26 and 19,712.54

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Solution

The fourth proportional to 31,645.46, 43,675.26 and 19,712.54 is: 27,206.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,645.46 : 43,675.26 = 19,712.54 : x
  2. Step 2: Convert to fraction form
    31,645.46/43,675.26 = 19,712.54/x
  3. Step 3: Cross multiply
    31,645.46x = 43,675.26 × 19,712.54
  4. Step 4: Simplify right side
    31,645.46x = 860,950,309.76
  5. Step 5: Solve for x
    x = 860,950,309.76/31,645.46
  6. Step 6: Final answer
    x = 27,206.12

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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.