Home / 20,450.24-28,219.38-11,954.35

Finding the Fourth Proportional to 20,450.24, 28,219.38 and 11,954.35

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Solution

The fourth proportional to 20,450.24, 28,219.38 and 11,954.35 is: 16,495.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.24 : 28,219.38 = 11,954.35 : x
  2. Step 2: Convert to fraction form
    20,450.24/28,219.38 = 11,954.35/x
  3. Step 3: Cross multiply
    20,450.24x = 28,219.38 × 11,954.35
  4. Step 4: Simplify right side
    20,450.24x = 337,344,345.30
  5. Step 5: Solve for x
    x = 337,344,345.30/20,450.24
  6. Step 6: Final answer
    x = 16,495.86

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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.