Home / 20,589.91-28,394.28-16,992.29

Finding the Fourth Proportional to 20,589.91, 28,394.28 and 16,992.29

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Solution

The fourth proportional to 20,589.91, 28,394.28 and 16,992.29 is: 23,433.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.91 : 28,394.28 = 16,992.29 : x
  2. Step 2: Convert to fraction form
    20,589.91/28,394.28 = 16,992.29/x
  3. Step 3: Cross multiply
    20,589.91x = 28,394.28 × 16,992.29
  4. Step 4: Simplify right side
    20,589.91x = 482,483,911.09
  5. Step 5: Solve for x
    x = 482,483,911.09/20,589.91
  6. Step 6: Final answer
    x = 23,433.03

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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.