Home / 21,166.96-29,209.44-11,735.32

Finding the Fourth Proportional to 21,166.96, 29,209.44 and 11,735.32

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Solution

The fourth proportional to 21,166.96, 29,209.44 and 11,735.32 is: 16,194.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166.96 : 29,209.44 = 11,735.32 : x
  2. Step 2: Convert to fraction form
    21,166.96/29,209.44 = 11,735.32/x
  3. Step 3: Cross multiply
    21,166.96x = 29,209.44 × 11,735.32
  4. Step 4: Simplify right side
    21,166.96x = 342,782,125.42
  5. Step 5: Solve for x
    x = 342,782,125.42/21,166.96
  6. Step 6: Final answer
    x = 16,194.21

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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.