Home / 19,740.82-27,234.12-12,932.90

Finding the Fourth Proportional to 19,740.82, 27,234.12 and 12,932.90

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Solution

The fourth proportional to 19,740.82, 27,234.12 and 12,932.90 is: 17,842.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.82 : 27,234.12 = 12,932.90 : x
  2. Step 2: Convert to fraction form
    19,740.82/27,234.12 = 12,932.90/x
  3. Step 3: Cross multiply
    19,740.82x = 27,234.12 × 12,932.90
  4. Step 4: Simplify right side
    19,740.82x = 352,216,150.55
  5. Step 5: Solve for x
    x = 352,216,150.55/19,740.82
  6. Step 6: Final answer
    x = 17,842.02

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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.