Home / 19,920.25-29,892.99-18,049.95

Finding the Fourth Proportional to 19,920.25, 29,892.99 and 18,049.95

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Solution

The fourth proportional to 19,920.25, 29,892.99 and 18,049.95 is: 27,086.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.25 : 29,892.99 = 18,049.95 : x
  2. Step 2: Convert to fraction form
    19,920.25/29,892.99 = 18,049.95/x
  3. Step 3: Cross multiply
    19,920.25x = 29,892.99 × 18,049.95
  4. Step 4: Simplify right side
    19,920.25x = 539,567,052.24
  5. Step 5: Solve for x
    x = 539,567,052.24/19,920.25
  6. Step 6: Final answer
    x = 27,086.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.