Home / 20,204.94-30,320.36-9,811.02

Finding the Fourth Proportional to 20,204.94, 30,320.36 and 9,811.02

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Solution

The fourth proportional to 20,204.94, 30,320.36 and 9,811.02 is: 14,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.94 : 30,320.36 = 9,811.02 : x
  2. Step 2: Convert to fraction form
    20,204.94/30,320.36 = 9,811.02/x
  3. Step 3: Cross multiply
    20,204.94x = 30,320.36 × 9,811.02
  4. Step 4: Simplify right side
    20,204.94x = 297,473,658.37
  5. Step 5: Solve for x
    x = 297,473,658.37/20,204.94
  6. Step 6: Final answer
    x = 14,722.82

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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.