Home / 20,824.68-28,736.32-11,749.54

Finding the Fourth Proportional to 20,824.68, 28,736.32 and 11,749.54

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Solution

The fourth proportional to 20,824.68, 28,736.32 and 11,749.54 is: 16,213.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,824.68 : 28,736.32 = 11,749.54 : x
  2. Step 2: Convert to fraction form
    20,824.68/28,736.32 = 11,749.54/x
  3. Step 3: Cross multiply
    20,824.68x = 28,736.32 × 11,749.54
  4. Step 4: Simplify right side
    20,824.68x = 337,638,541.29
  5. Step 5: Solve for x
    x = 337,638,541.29/20,824.68
  6. Step 6: Final answer
    x = 16,213.38

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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.