Home / 21,295.96-29,385.86-11,735.64

Finding the Fourth Proportional to 21,295.96, 29,385.86 and 11,735.64

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Solution

The fourth proportional to 21,295.96, 29,385.86 and 11,735.64 is: 16,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.96 : 29,385.86 = 11,735.64 : x
  2. Step 2: Convert to fraction form
    21,295.96/29,385.86 = 11,735.64/x
  3. Step 3: Cross multiply
    21,295.96x = 29,385.86 × 11,735.64
  4. Step 4: Simplify right side
    21,295.96x = 344,861,874.05
  5. Step 5: Solve for x
    x = 344,861,874.05/21,295.96
  6. Step 6: Final answer
    x = 16,193.77

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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.