Home / 20,320.23-30,470.62-8,627.07

Finding the Fourth Proportional to 20,320.23, 30,470.62 and 8,627.07

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Solution

The fourth proportional to 20,320.23, 30,470.62 and 8,627.07 is: 12,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.23 : 30,470.62 = 8,627.07 : x
  2. Step 2: Convert to fraction form
    20,320.23/30,470.62 = 8,627.07/x
  3. Step 3: Cross multiply
    20,320.23x = 30,470.62 × 8,627.07
  4. Step 4: Simplify right side
    20,320.23x = 262,872,171.68
  5. Step 5: Solve for x
    x = 262,872,171.68/20,320.23
  6. Step 6: Final answer
    x = 12,936.48

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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.