Home / 20,926.62-28,879.38-11,495.19

Finding the Fourth Proportional to 20,926.62, 28,879.38 and 11,495.19

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Solution

The fourth proportional to 20,926.62, 28,879.38 and 11,495.19 is: 15,863.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.62 : 28,879.38 = 11,495.19 : x
  2. Step 2: Convert to fraction form
    20,926.62/28,879.38 = 11,495.19/x
  3. Step 3: Cross multiply
    20,926.62x = 28,879.38 × 11,495.19
  4. Step 4: Simplify right side
    20,926.62x = 331,973,960.18
  5. Step 5: Solve for x
    x = 331,973,960.18/20,926.62
  6. Step 6: Final answer
    x = 15,863.72

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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.