Home / 20,630.58-30,936.42-11,273.74

Finding the Fourth Proportional to 20,630.58, 30,936.42 and 11,273.74

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Solution

The fourth proportional to 20,630.58, 30,936.42 and 11,273.74 is: 16,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630.58 : 30,936.42 = 11,273.74 : x
  2. Step 2: Convert to fraction form
    20,630.58/30,936.42 = 11,273.74/x
  3. Step 3: Cross multiply
    20,630.58x = 30,936.42 × 11,273.74
  4. Step 4: Simplify right side
    20,630.58x = 348,769,155.61
  5. Step 5: Solve for x
    x = 348,769,155.61/20,630.58
  6. Step 6: Final answer
    x = 16,905.45

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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.