Home / 20,954.68-28,917.75-11,523.46

Finding the Fourth Proportional to 20,954.68, 28,917.75 and 11,523.46

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Solution

The fourth proportional to 20,954.68, 28,917.75 and 11,523.46 is: 15,902.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.68 : 28,917.75 = 11,523.46 : x
  2. Step 2: Convert to fraction form
    20,954.68/28,917.75 = 11,523.46/x
  3. Step 3: Cross multiply
    20,954.68x = 28,917.75 × 11,523.46
  4. Step 4: Simplify right side
    20,954.68x = 333,232,535.42
  5. Step 5: Solve for x
    x = 333,232,535.42/20,954.68
  6. Step 6: Final answer
    x = 15,902.54

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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.