Home / 20,539.38-28,352.04-15,993.09

Finding the Fourth Proportional to 20,539.38, 28,352.04 and 15,993.09

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Solution

The fourth proportional to 20,539.38, 28,352.04 and 15,993.09 is: 22,076.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539.38 : 28,352.04 = 15,993.09 : x
  2. Step 2: Convert to fraction form
    20,539.38/28,352.04 = 15,993.09/x
  3. Step 3: Cross multiply
    20,539.38x = 28,352.04 × 15,993.09
  4. Step 4: Simplify right side
    20,539.38x = 453,436,727.40
  5. Step 5: Solve for x
    x = 453,436,727.40/20,539.38
  6. Step 6: Final answer
    x = 22,076.46

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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.