Home / 20,040.73-27,651.23-12,958.63

Finding the Fourth Proportional to 20,040.73, 27,651.23 and 12,958.63

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Solution

The fourth proportional to 20,040.73, 27,651.23 and 12,958.63 is: 17,879.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.73 : 27,651.23 = 12,958.63 : x
  2. Step 2: Convert to fraction form
    20,040.73/27,651.23 = 12,958.63/x
  3. Step 3: Cross multiply
    20,040.73x = 27,651.23 × 12,958.63
  4. Step 4: Simplify right side
    20,040.73x = 358,322,058.61
  5. Step 5: Solve for x
    x = 358,322,058.61/20,040.73
  6. Step 6: Final answer
    x = 17,879.69

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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.