Home / 22,221.60-33,251.40-13,905.60

Finding the Fourth Proportional to 22,221.60, 33,251.40 and 13,905.60

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Solution

The fourth proportional to 22,221.60, 33,251.40 and 13,905.60 is: 20,807.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.60 : 33,251.40 = 13,905.60 : x
  2. Step 2: Convert to fraction form
    22,221.60/33,251.40 = 13,905.60/x
  3. Step 3: Cross multiply
    22,221.60x = 33,251.40 × 13,905.60
  4. Step 4: Simplify right side
    22,221.60x = 462,380,667.84
  5. Step 5: Solve for x
    x = 462,380,667.84/22,221.60
  6. Step 6: Final answer
    x = 20,807.71

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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.