Home / 21,168.34-29,214.03-11,736.70

Finding the Fourth Proportional to 21,168.34, 29,214.03 and 11,736.70

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Solution

The fourth proportional to 21,168.34, 29,214.03 and 11,736.70 is: 16,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168.34 : 29,214.03 = 11,736.70 : x
  2. Step 2: Convert to fraction form
    21,168.34/29,214.03 = 11,736.70/x
  3. Step 3: Cross multiply
    21,168.34x = 29,214.03 × 11,736.70
  4. Step 4: Simplify right side
    21,168.34x = 342,876,305.90
  5. Step 5: Solve for x
    x = 342,876,305.90/21,168.34
  6. Step 6: Final answer
    x = 16,197.60

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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.