Home / 21,591.05-29,744.60-20,594.55

Finding the Fourth Proportional to 21,591.05, 29,744.60 and 20,594.55

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Solution

The fourth proportional to 21,591.05, 29,744.60 and 20,594.55 is: 28,371.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,591.05 : 29,744.60 = 20,594.55 : x
  2. Step 2: Convert to fraction form
    21,591.05/29,744.60 = 20,594.55/x
  3. Step 3: Cross multiply
    21,591.05x = 29,744.60 × 20,594.55
  4. Step 4: Simplify right side
    21,591.05x = 612,576,651.93
  5. Step 5: Solve for x
    x = 612,576,651.93/21,591.05
  6. Step 6: Final answer
    x = 28,371.79

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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.