Home / 20,741.56-28,623.54-11,310.28

Finding the Fourth Proportional to 20,741.56, 28,623.54 and 11,310.28

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Solution

The fourth proportional to 20,741.56, 28,623.54 and 11,310.28 is: 15,608.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.56 : 28,623.54 = 11,310.28 : x
  2. Step 2: Convert to fraction form
    20,741.56/28,623.54 = 11,310.28/x
  3. Step 3: Cross multiply
    20,741.56x = 28,623.54 × 11,310.28
  4. Step 4: Simplify right side
    20,741.56x = 323,740,251.99
  5. Step 5: Solve for x
    x = 323,740,251.99/20,741.56
  6. Step 6: Final answer
    x = 15,608.29

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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.