Home / 21,613.64-29,834.26-12,664.04

Finding the Fourth Proportional to 21,613.64, 29,834.26 and 12,664.04

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Solution

The fourth proportional to 21,613.64, 29,834.26 and 12,664.04 is: 17,480.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,613.64 : 29,834.26 = 12,664.04 : x
  2. Step 2: Convert to fraction form
    21,613.64/29,834.26 = 12,664.04/x
  3. Step 3: Cross multiply
    21,613.64x = 29,834.26 × 12,664.04
  4. Step 4: Simplify right side
    21,613.64x = 377,822,081.18
  5. Step 5: Solve for x
    x = 377,822,081.18/21,613.64
  6. Step 6: Final answer
    x = 17,480.73

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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.