Home / 21,166.92-29,210.20-11,735.44

Finding the Fourth Proportional to 21,166.92, 29,210.20 and 11,735.44

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Solution

The fourth proportional to 21,166.92, 29,210.20 and 11,735.44 is: 16,194.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166.92 : 29,210.20 = 11,735.44 : x
  2. Step 2: Convert to fraction form
    21,166.92/29,210.20 = 11,735.44/x
  3. Step 3: Cross multiply
    21,166.92x = 29,210.20 × 11,735.44
  4. Step 4: Simplify right side
    21,166.92x = 342,794,549.49
  5. Step 5: Solve for x
    x = 342,794,549.49/21,166.92
  6. Step 6: Final answer
    x = 16,194.82

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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.