Home / 20,183.16-30,275.55-9,089.40

Finding the Fourth Proportional to 20,183.16, 30,275.55 and 9,089.40

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Solution

The fourth proportional to 20,183.16, 30,275.55 and 9,089.40 is: 13,634.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.16 : 30,275.55 = 9,089.40 : x
  2. Step 2: Convert to fraction form
    20,183.16/30,275.55 = 9,089.40/x
  3. Step 3: Cross multiply
    20,183.16x = 30,275.55 × 9,089.40
  4. Step 4: Simplify right side
    20,183.16x = 275,186,584.17
  5. Step 5: Solve for x
    x = 275,186,584.17/20,183.16
  6. Step 6: Final answer
    x = 13,634.46

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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.