Home / 21,155.62-29,193.50-11,593.60

Finding the Fourth Proportional to 21,155.62, 29,193.50 and 11,593.60

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Solution

The fourth proportional to 21,155.62, 29,193.50 and 11,593.60 is: 15,998.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,155.62 : 29,193.50 = 11,593.60 : x
  2. Step 2: Convert to fraction form
    21,155.62/29,193.50 = 11,593.60/x
  3. Step 3: Cross multiply
    21,155.62x = 29,193.50 × 11,593.60
  4. Step 4: Simplify right side
    21,155.62x = 338,457,761.60
  5. Step 5: Solve for x
    x = 338,457,761.60/21,155.62
  6. Step 6: Final answer
    x = 15,998.48

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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.