Home / 20,204.15-30,320.09-7,056.54

Finding the Fourth Proportional to 20,204.15, 30,320.09 and 7,056.54

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Solution

The fourth proportional to 20,204.15, 30,320.09 and 7,056.54 is: 10,589.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.15 : 30,320.09 = 7,056.54 : x
  2. Step 2: Convert to fraction form
    20,204.15/30,320.09 = 7,056.54/x
  3. Step 3: Cross multiply
    20,204.15x = 30,320.09 × 7,056.54
  4. Step 4: Simplify right side
    20,204.15x = 213,954,892.61
  5. Step 5: Solve for x
    x = 213,954,892.61/20,204.15
  6. Step 6: Final answer
    x = 10,589.65

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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.