Home / 20,613.24-28,448-11,662.34

Finding the Fourth Proportional to 20,613.24, 28,448 and 11,662.34

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Solution

The fourth proportional to 20,613.24, 28,448 and 11,662.34 is: 16,095.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,613.24 : 28,448 = 11,662.34 : x
  2. Step 2: Convert to fraction form
    20,613.24/28,448 = 11,662.34/x
  3. Step 3: Cross multiply
    20,613.24x = 28,448 × 11,662.34
  4. Step 4: Simplify right side
    20,613.24x = 331,770,248.32
  5. Step 5: Solve for x
    x = 331,770,248.32/20,613.24
  6. Step 6: Final answer
    x = 16,095.01

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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.