Home / 20,189.75-30,260.88-9,083.43

Finding the Fourth Proportional to 20,189.75, 30,260.88 and 9,083.43

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Solution

The fourth proportional to 20,189.75, 30,260.88 and 9,083.43 is: 13,614.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.75 : 30,260.88 = 9,083.43 : x
  2. Step 2: Convert to fraction form
    20,189.75/30,260.88 = 9,083.43/x
  3. Step 3: Cross multiply
    20,189.75x = 30,260.88 × 9,083.43
  4. Step 4: Simplify right side
    20,189.75x = 274,872,585.22
  5. Step 5: Solve for x
    x = 274,872,585.22/20,189.75
  6. Step 6: Final answer
    x = 13,614.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.